[andyralph]

Hi all want to fit an inline tds best place to purchase and can I fit it on my van sytsem and how difficult is it thanks andy

[Spruce]

Hi all want to fit an inline tds best place to purchase and can I fit it on my van sytsem and how difficult is it thanks andy

Daqua.co.uk. You need the specify what size hose you have, ie. 1/4", 3/8" or 1/2".

I purchased the 1/2" for my 4040. Its the 2 sensor one. I have the first sensor on the pure before the di vessel and the second after the di vessel. I didn't see the need to have a 3rd for the incoming tap water.

If I see the TDS of the pure after the r/o is too high then I could check the tap water tds with my handheld tds meter.

Our water fluctuates between 79 and 150ppm. As long as the first sensor is 2 or 3ppm I'm happy. If its 4ppm then I check the tap water tds and fiddle with the waste gate valve to try to improve it.

My r/o membrane is 7 years old are still has a rejection rate of 97%.

[andyralph]

That’s great thanks I’ll order 1 2 morro just looked at daqua and they look easy to install an my tube is 1/2 inch so I’ll order that thanks andy