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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: williamx on February 20, 2009, 03:52:26 pm

Title: How does hot water affect the TDS readings in your Pure Water
Post by: williamx on February 20, 2009, 03:52:26 pm

I have performed a couple of simple experiments to check if Hot Water has any effects on Pure Water, these are my findings.

Cold Water

I left a brass fitting in a bowl of Pure Water with a TDS reading of 000, within 6 hours the TDS reading had risen to 6 and then 12, 6 hours later, after 2 days the reading had settled at 22 and it was going up by the rate of 001 every day there-after for the last 4 days.

I then put this brass fitting in a bowl of Pure Water with a TDS reading of 000, I heated the water up to boiling point and checked the TDS reading, which had risen to 49 and still climbing.

I then boiled a bowl of Pure Water with a TDS reading of 000, I checked the water when it was uke warm and the TDS was 001, I then brought the water to the boil and the TDS had risen to 003.

I then boiled another bowl of water with a stainless steel fitting and the TDS had isen to 10 TDS.

My conclusions are that with hot water, if you have brass fittings then you water will rise to a level that will leave marks on the glass, and with stainless steel fitting the TDS level is acceptable.

Title: Re: How does hot water affect the TDS readings in your Pure Water
Post by: tomy jackson on February 20, 2009, 04:49:57 pm

no it wont as the water runin thowe it not standing in it

Title: Re: How does hot water affect the TDS readings in your Pure Water
Post by: weetot on February 20, 2009, 06:37:06 pm

Get Johnny Ball onto it he'll know!!!!!