[Avo]

I've been buying bottle water for home use and struggling getting low readings from 4040 when filling up the van.
why are the readings in warwick 515 and other parts of the country 50 or so???
What makes the water hard?

[deeege]

Depends where the water comes from I think.

My water comes from a local reservoir and is 029ppm.

My mums (she lives 2 miles from me) water comes from a reservoir in the Pennines and is ~350ppm.

[Soupy]

It's minerals in the water. If you have lots of limestone near you, it dissolves and is carried by the water. Harder stone, like say, granite, doesn't dissolve so much.

[Rob@Blast off]

I get about 340 in Leamington, i thought it would of been the same supply as Warwick but obviously not.

[Avo]

I get about 340 in Leamington, i thought it would of been the same supply as Warwick but obviously not.

lillington I get 444 and my house in warwick 515  that's mega high.

[Spruce]

In our experience I also think the condition of the pipes supplying water make a difference as well.

In Teesside all our water comes from Keilder dam and always has in the last 20 years we have lived here. When we first started with wfp our tap water tds was around 255. A few years later all the supply pipes were replaced with plastic pipe liners and immediately our tds dropped to 115. It now fluctuates between 90 and 115.

[Simon Mess]

515?!, you have my sympathies, that is not good. I think your options would be to;

A, Move to a location with softer water.

B, Do trad cleaning only or at least as much as you can, so you are not needing as much pure water.

C, A different job.

[SeanK]

515?!, you have my sympathies, that is not good. I think your options would be to;

A, Move to a location with softer water.

B, Do trad cleaning only or at least as much as you can, so you are not needing as much pure water.

C, A different job.

Why does he need to do any of the above ?
A 4040 HF5 membrane will take his water down to around 11ppm, at 80PSI they remove 98% of the TDS.
Then just polish it of with resin.
Yes he might have to change the membrane more often than some but still very affordable.

[michael robinson]

Madness I know I get 390 in warrington where I am and yet I know that 3 or 4 miles away its 50 I cant make sense of it after ro I still get a reading of 35 a disgrace so have to use resin go through tons of the stuff.

[Avo]

515?!, you have my sympathies, that is not good. I think your options would be to;

A, Move to a location with softer water.

B, Do trad cleaning only or at least as much as you can, so you are not needing as much pure water.

C, A different job.

a little over the top there me think haha.
I am killing resin faster at Tds 48 after hf4 currently.. I will try hf5 next time round when this dies

[Elfyn]

I think it has a lot to do with the water treatment in the area. In my area, the TDS drops and the pressure increases in winter (good for RO), but the pressure is fairly low and the TDS is higher in summer. The water before treatment is obviously the same all year round. 

[Rob@Blast off]

I get about 340 in Leamington, i thought it would of been the same supply as Warwick but obviously not.

lillington I get 444 and my house in warwick 515  that's mega high.

Does it take longer to fill the tank with a higher tds?

[deeege]

Madness I know I get 390 in warrington where I am and yet I know that 3 or 4 miles away its 50 I cant make sense of it after ro I still get a reading of 35 a disgrace so have to use resin go through tons of the stuff.

Hi Michael. South of the town centre (WA4 area) get there water from Walton Reservoir and North of the town centre it comes from a reservoir near Rochdale, hence the very different PPM readings.

This is what I was told by a United Utilities manager a couple of years ago.

[Avo]

I get about 340 in Leamington, i thought it would of been the same supply as Warwick but obviously not.

lillington I get 444 and my house in warwick 515  that's mega high.

Does it take longer to fill the tank with a higher tds?

around 1.6 litres a min it's not as fast as my brothers hf5 his runs much faster from my tap, he gets 2.4 litres a minute Tds 16 after the hf5

[niceandclean]

Have you got a booster pump on your HF4??

[Avo]

Straight off the mains without booster

[niceandclean]

I was told by RO Man years ago and Gaps when the HF5 membranes hit the market, that the HF4 needs high pressure, tap pressure in most cases is not enough, think it was 80psi or more? My first HF4 with a booster pump lasted 6 years before it started to become less efficient. My Tap TDS is 420, mains boosted to 110 psi, comes out of RO at 13.