Filter Replacement Guide; Understanding The Expected Life Of The Filter - PROBOIL .4E User's Installation Manual

1.2.2 Filter replacement guide:

Understanding the expected life of the filter:

Understanding the expected life of the filter:
Understanding the expected life of the filter: Understanding the expected life of the filter:
The product is supplied with a filter specifically designed to both improve the taste and clarity of the water but also to
assist protecting the boiler from contaminants and scale.
The filter status bar time limit is 6 months. This reminder is based on 19 degrees Clark (London) hardness of water and
an estimated 5 litres filter use per day. The filter volume at this hardness is approximately 1020 litres. Research shows a
near 50/50 split of average water use between domestic boiled and ambient filtered water usage.
The volume limit is 1750 litres. Based on half the capacity of the filter in the softer water conditions, this assumes 50%
of the water is used for cold drinking water only.
Each installation will have a different number of people using it, a different usage pattern and an individual water
hardness "GB Clark rating". Because of this the PROBOIL can only remind you when to check the filter, you must judge
for yourself if the filter needs changing or not, as no two installations are the same use the guide below.
1) Take your GB Clark water hardness value (using a test strip or type
your postcode into your water supplier's website) and add 2° Clarke
(30PPM).
2) Using this NEW HIGHER Clark hardness value against the table
(right) in conjunction with your estimated personal water usage you
may better judge the filter replacement guide.
3) Worked Example: WATER USAGE = 0862 litres, your local water
hardness is 11° Clark, add 2° Clark, then the 'REPLACE LITRES' value
in the table for 13° Clark is 850 litres. In this example the 'WATER
USAGE' is more than 'REPLACE LITRES' so the filter requires
replacement.
⚠
If your PROBOIL is noisier that normal or the flow rate is
reduced this is typically a good practical indicator that the filter
may need replacing and the boiler may need to be descaled.
Replacement filters can be obtained by contacting the service
agent number on the sticker on the top of the boiler or by visiting
PROBOIL.CO.UK

Regardless of the amount of usage it is required for you to replace the filter on schedule for reasons of product
protections, hygiene and maintaining your warranty. The recommended replacement frequency may increase in hard
water areas or high usage applications.
Only genuine parts must be used to maintain your product warranty, these are available at proboil.co.uk or by calling
(+44) 01226 283434.
PROBOIL.4E user & installation guide v1d
*REPLACE LITRES
GB °Clark PPM
5 70
6 90
8 107
9 125
10 143
11 161
13 179
14 196
15 214
16 232
18 250
19 268
20 286
21 304
24 339
26 375
29 411
33 464
36 518
41 589
48 679
1960
1610
1415
1215
1065
945
850
775
640
590
545
510
480
450
405
365
335
250
220
185
170
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