WaterBackpack PAUL Manuale utente

The WaterBackpack Company GmbH

PAUL Station Manual 2019-05-25

PAUL®Station

Manual

– assembly, start-up, operation and maintenance –

last modified 25.05.2019

PAUL station manual page i

PAUL Station Manual 2019-05-25 25.05.2019

Content

1Principle of the PAUL®Station..................................................................1

2What can be delivered for the PAUL®Station ..........................................3

2.1 Overview..................................................................................................................3

2.2 Upgrading an existing PAUL®standard unit ........................................................4

3Before the assembly..................................................................................5

3.1 Considerations on the raw water source..............................................................5

3.2 Water supply for the Raw Water Tank...................................................................5

3.3 Overview over available accessories for the PAUL®station...............................6

3.4 Necessary tools.......................................................................................................6

3.5 Scope of delivery ....................................................................................................6

3.6 Height of the tanks relative to the PAUL®unit......................................................7

4Assembly....................................................................................................8

4.1 Set 1 to connect the Raw Water Tank with PAUL®...............................................8

4.1.1 Overview ......................................................................................................8

4.1.2 Mounting the tank connector on the Raw Water Tank..................................8

4.1.3 Connecting the Raw Water Tank with PAUL®............................................10

4.1.4 Remarks on the OPV or OPV-S.................................................................11

4.2 Set 2 to connect PAUL®with the Filtered Water Tank.......................................12

4.2.1 Overview ....................................................................................................12

4.2.2 How to install..............................................................................................12

4.3 Set 3 outlet FWT....................................................................................................14

4.4 Set 4 side outlet with hose...................................................................................15

4.5 Overfill Protection Switch (OPS) for the Raw Water Tank.................................16

4.6 Run-Dry Protection Switch (RPS)........................................................................16

5Start-up and operation.............................................................................17

5.1 OPV adjustment ....................................................................................................17

5.2 Start-up of the PAUL®station ..............................................................................18

5.3 Temporary stop of operation ...............................................................................19

6Maintenance ............................................................................................. 20

6.1 Daily .......................................................................................................................20

6.1.1 Water level inside PAUL®...........................................................................20

6.1.2 Sieve between RWT and PAUL®................................................................20

6.2 Weekly....................................................................................................................20

6.2.1 Removing slurry from the PAUL®unit.........................................................20

6.2.2 Measurement of maximum filtration capacity.............................................21

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6.3 Monthly ..................................................................................................................22

6.3.1 Cleaning of the FWT ..................................................................................22

6.4 Undefined frequency ............................................................................................22

6.4.1 Cleaning the RWT......................................................................................22

6.4.2 Cleaning the membrane module ................................................................22

7Troubleshooting....................................................................................... 23

7.1 Waterlevel in PAUL®is too low............................................................................23

7.2 How to disassemble and re-assemble PAUL®....................................................23

8Additional information.............................................................................27

8.1 Chlorine dosing.....................................................................................................27

8.2 Taking PAUL®out of operation for a long period of time..................................29

9Detailed list of parts that come with set 1 to set 4................................. 30

List of figures

Figure 1: Scheme of the PAUL®station................................................................................1

Figure 2: requirements concerning height of tanks and PAUL®unit......................................7

Figure 3: All parts that come with set 1 and how to connect..................................................8

Figure 4: RWT connector parts of set1 (top: ¾" version, down: 1“ version) pre-

assembled...............................................................................................................9

Figure 5: RWT connector parts of set1 (top: ¾" version, down: 1“ version) ready for

mounting in the RWT..............................................................................................9

Figure 6: RWT connector parts of set1 (top: ¾" version, down: 1“ version) ready for

mounting in the RWT............................................................................................10

Figure 7: LWS box ...............................................................................................................11

Figure 8: All parts that come with set 2 including water meter (left) and single valve for

the FWT (right) and how to connect......................................................................12

Figure 9: Connection between PAUL®and the Filtered Water Tank – installation scheme.13

Figure 10:Connection between PAUL®and the Filtered Water Tank (set 2) – what comes

with PAUL®and how to mount the water meter....................................................13

Figure 11:Set 3 consisting of trank connector and ball tap....................................................14

Figure 12:Side outlet with hose.............................................................................................15

Figure 13:OPV for PAUL®.....................................................................................................17

Figure 14:OPV with rotated float arm (transport position).....................................................18

Figure 15:OPV correct adjusted............................................................................................18

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Figure 16: meter reading........................................................................................................21

Figure 17: sample protocol for maximum filtration test ..........................................................21

Figure 18: membrane module – look through the slits between the plates............................26

List of tables

Table 1: List of parts included in set 1: connection between RWT and PAUL®(RWT

connection with ¾" diameter)................................................................................30

Table 2: List of parts included in set 1: connection between RWT and PAUL®(RWT

connection with 1" diameter).................................................................................31

Table 3: List of parts included in set 2: connection between PAUL®and FWT...................31

Table 4: List of parts included in set 3: outlet FWT.............................................................32

Table 5: List of parts included in set 4: side outlet with hose..............................................32

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PAUL Station Manual 2019-05-25 25.05.2019

1 Principle of the PAUL®Station

The waterbackpack PAUL®is the core of the PAUL®station. The basic idea behind it is

that it is essential to be able to tap large amounts of water in a short time. As the filtration

process in PAUL®is steady but slow, two additional tank are necessary:

a Raw Water Tank (RWT) that stores the raw water so PAUL®can filter continuously

a Filtered Water Tank (FWT) to store the filtered water during times where no water is

tapped

Figure 1 shows a scheme of the PAUL®Station arrangement.

Figure 1: Scheme of the PAUL®station

Water is pumped into the RWT (as an example, in the scheme above realized with a solar

powered solution) and flows into the PAUL®unit. The filtered water from the PAUL®unit then

flows into the FWT.

OPV: w/o LWS (box+sensor)

OPV-S: incl. LWS (box+sensor)

Single Valve

(included in set 2)

bottom outlet water taps

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PAUL Station Manual 2019-05-25 25.05.2019

As a consequence, all three units have to be equipped with installations that prevent over-

filling in order to allow fully unattended use.

This automatic overfilling prevention for the whole PAUL®station is realized by the fol-

lowing tools (see also Figure 1):

in the RWT: the OPS, i.e. Overfill Protection Switch, an electrical switch in a float is

used that switches off the electrical raw water pump if the waterlevel exceeds an ad-

justable level

in the PAUL®unit: the OPV, i.e. Overfill Protection Valve (also called "auto-stop valve")

is used that closes the inlet if the waterlevel in PAUL®exceeds a certain height

in the FWT: the SV, i.e. Single Valve (also called "auto-stop valve") is used that closes

the inlet to the FWT if the water level in the FWT exceeds an adjustable level

Another thing that is necessary in most situations is the RPS, i.e. the Run-dry Protection

Switch for the electric pump. The device itself is identical with the OPS.

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PAUL Station Manual 2019-05-25 25.05.2019

2 What can be delivered for the PAUL®Station

2.1 Overview

The minimum scope of delivery for a permanent water supply solution by the PAUL®station

consists of

PAUL®unit equipped with

OPV (Overfill Protection Valve) which replaces the standard sieve of PAUL®

This is the minimum requirement for a permanent water supply with the PAUL®station,

as it enables the connection between the RWT (or any other water supply connection)

with PAUL®and a self-closing cover which can be opened in order to fill PAUL®with a

bucket alternatively. Here a sieve is provided identical to the standard sieve.

In addition to this minimum scope of delivery, the following items are available and recom-

mended, depending upon the local circumstances:

set 1: connecting the RWT to PAUL

set 2: connecting PAUL®to the FWT

set 3: outlet of the FWT

set 4: side outlet with hose

OPS

RPS

With the side outlet with hose, you can observe the water level inside PAUL®, as the hose is

transparent. This is sufficient in most cases.

For those, however, who want/need an automated warning once the water level inside

PAUL®is low, we offer a PAUL®control unit which consists of

OPV-S (Overfill Protection Valve with Sensor) which replaces the standard sieve of

PAUL®, including the nozzle to connect the RWT with PAUL®and a self-closing cover

which can be opened in order to fill PAUL®with a bucket alternatively. Here a sieve is

provided identical to the standard sieve.

It is identical with the OPV but also has the water level sensor mounted.

LWS (Low waterlevel Warning System) box: this separate box is connected to the wa-

ter level sensor mounted on the OPV-S via a 2-wire electric connection. The LWS box

can be mounted close to PAUL®or even far remote by simply adding more wiring (re-

gardless of polarity), e.g. in the house of the caretaker.

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PAUL Station Manual 2019-05-25 25.05.2019

Although we recommend to solve the issue of water supply locally, see chapter 3.2, on spe-

cial request we can also provide

12 V DC pump and

the matching solar panel

Please note: If you ordered PAUL®together with the parts needed for the PAUL®station

configuration, some items are already mounted on your PAUL®unit.

2.2 Upgrading an existing PAUL®standard unit

If you upgrade an existing PAUL®standard unit, simply exchange the sieve and mount the

OPV (or the OPV-S) instead by removing the two screws that hold the sieve, and then mount

the OPV/OPV-S in this place by using the same screws.

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PAUL Station Manual 2019-05-25 25.05.2019

3 Before the assembly

3.1 Considerations on the raw water source

In general, it is recommended to use the best available water source. PAUL®is not able to

desalinate or detox salty or toxic waters, as is also mentioned on the device.

Thus, which water can be used?

Usually, stored rainwater, e.g. in cisterns or reservoirs is the best raw water source, as

there is little or no contamination from industry, farming or geogenic origin.

Also, rivers can be a good source, provided there is no influence of industry or farming

upstream

If – usually due to lack of water in sufficient quantity – wells have to be drilkled, this wa-

ter may also be of very good quality. However, it is a minimum requirement to check

concerning heavy metals, arsenic and fluoride, at least as a grab sample. Also the con-

centration on iron and manganese should be analyzed.

Advice can be given upon request.

3.2 Water supply for the Raw Water Tank

It has to be considered how the RWT can be fed with raw water. This will usually be done by

an electric pump. Energy might be supplied by local grid or by solar power. Of course, the

pump must fit to the type of energy supply.

Whatever solution is appropriate and feasible under the local circumstances, it should be as-

sured that filling the RWT can operate fully unattended without overfilling the RWT.

In case of electric pumps, a float switch that breaks the electric circuit for the pump when ex-

ceeding a set water level in the RWT can also be provided, the so called OPS, see chapter 2.

When selecting the pump, important criteria include

Suction or submerged pump

Energy requirement, depending upon length and diameter of hoses and height to be

sucked/pumped

Ability of permanent operation

Ability of running dry – if not, a Run-dry Protection Switch (RPS) is necessary, see

chapter 2

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PAUL Station Manual 2019-05-25 25.05.2019

3.3 Overview over available accessories for the PAUL®station

In this manual, the assembly of a PAUL®station is described, basing on all accessories

mentioned in chapter 2. Also, important hints are given. Of course, except PAUL®and the

OPV, everything can also be purchased locally, provided it has the same functionality. How-

ever, we assess as follows:

Set 1: essential

Set 2: essential

Set 3: recommended

Set 4: essential

OPS: recommended (if an electric/solar pump is involved)

RPS: dependent upon your chosen pumping solution

3.4 Necessary tools

Screw-wrench AF 17, 22, 25, 30 and 32

Hose cutter, alternatively stable scissor or cutter or knife

Crimping tool, alternatively gripper

Centre bit ¾“ or 1" and ½“

Standard set of screwdrivers and phillips screwdrivers

Drilling machine is recommended

3.5 Scope of delivery

This varies of course depending upon order.

However, in chapter 9 all single parts are listed an specified, so it is a good idea to first check

the delivery for completeness. If any doubts, please contact us via Mail. Please include pho-

tos to explain your issue.

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