51
Window Cleaning Forum / Re: TDS risen sharply
« Last post by The Jester of Wibbly on February 24, 2026, 08:37:44 pm »Wow 800ppm is dangerous high for tap water. Must be an issue
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52
Window Cleaning Forum / Re: TDS risen sharply
« Last post by AuRavelling79 on February 24, 2026, 08:13:39 pm »Thanks. I will check.
I'm in st.ives but cambs one not cornwall.
Near huntingdon
I'm on the north west edge of Bristol and get supplied by Bristol Water. They use Chew Valley reservoirs in North Somerset AND draw off water from the Sharpness Canal in Gloucestershire which is fed by the River Severn.
I find after a lot of rain my tds DROPS. I've been window cleaning WFP from here since 2005 and the pattern is as follows -
After a lot of rainy days Input TDS250/300 output 4-6ppm. After a dry spell, Input TDS 350 plus output 7-9ppm.
I use an old Merlin type PRF R/O with the uprated membranes.
We used to do a bit of work in Bristol and the reading was 450-475
Wow! It is certainly higher because of all the limestone around Bristol. In general terms When you are getting water via the reservoirs from the Mendips it is higher. I don't recall mine ever going above 400. Never lower than 250 either.
Maybe because I am on the NW edge I get more of mine from Purton on the Severn/Sharpness side rather than the Southern side of Bristol? So mine is a bit lower overall?
My water pressure is good - normally between 60 and 65psi naturally so that helps the output.
53
Window Cleaning Forum / Re: TDS risen sharply
« Last post by Splash and dash on February 24, 2026, 08:07:47 pm »Thanks. I will check.
I'm in st.ives but cambs one not cornwall.
Near huntingdon
I'm on the north west edge of Bristol and get supplied by Bristol Water. They use Chew Valley reservoirs in North Somerset AND draw off water from the Sharpness Canal in Gloucestershire which is fed by the River Severn.
I find after a lot of rain my tds DROPS. I've been window cleaning WFP from here since 2005 and the pattern is as follows -
After a lot of rainy days Input TDS250/300 output 4-6ppm. After a dry spell, Input TDS 350 plus output 7-9ppm.
I use an old Merlin type PRF R/O with the uprated membranes.
We used to do a bit of work in Bristol and the reading was 450-475
54
Window Cleaning Forum / Re: TDS risen sharply
« Last post by Splash and dash on February 24, 2026, 08:06:17 pm »Thanks. I will check.
I'm in st.ives but cambs one not cornwall.
Near huntingdon
St Ives Cornwall has a reading of between 85-95 usually we do a few hotels there
55
Window Cleaning Forum / Re: TDS risen sharply
« Last post by AuRavelling79 on February 24, 2026, 08:03:19 pm »Thanks. I will check.
I'm in st.ives but cambs one not cornwall.
Near huntingdon
I'm on the north west edge of Bristol and get supplied by Bristol Water. They use Chew Valley reservoirs in North Somerset AND draw off water from the Sharpness Canal in Gloucestershire which is fed by the River Severn.
I find after a lot of rain my tds DROPS. I've been window cleaning WFP from here since 2005 and the pattern is as follows -
After a lot of rainy days Input TDS250/300 output 4-6ppm. After a dry spell, Input TDS 350 plus output 7-9ppm.
I use an old Merlin type PRF R/O with the uprated membranes.
56
Window Cleaning Forum / Re: TDS risen sharply
« Last post by Andrew4444 on February 24, 2026, 07:20:23 pm »Thanks. I will check.
I'm in st.ives but cambs one not cornwall.
Near huntingdon
I'm in st.ives but cambs one not cornwall.
Near huntingdon
57
Window Cleaning Forum / Re: TDS risen sharply
« Last post by deeege on February 24, 2026, 07:06:38 pm »Your water company may have changed where they get your water from.
My water used to be 050 but jumped to 350. The water company changed the supply from surface water (a reservoir) to ground water (boreholes). I’d check with your water company.
Where in the country are you?
My water used to be 050 but jumped to 350. The water company changed the supply from surface water (a reservoir) to ground water (boreholes). I’d check with your water company.
Where in the country are you?
58
Window Cleaning Forum / TDS risen sharply
« Last post by Andrew4444 on February 24, 2026, 06:54:44 pm »I've noticed my domestic water supply has a much higher TDS reading than usual. For past 15 years its been 320 to 340 INCOMING but now it 750 to 800 !!
I've tested my neighbours and she has the same high reading so it can't be an isolated issue within my house.
RO is brining it down to 15 (usually 7 or
so its doing its job but has anyone else ever noticed a very sharp rise in TDS for incoming water supply??
Could it be the heavy rains that has caused this?
I've tested my neighbours and she has the same high reading so it can't be an isolated issue within my house.
RO is brining it down to 15 (usually 7 or
so its doing its job but has anyone else ever noticed a very sharp rise in TDS for incoming water supply??Could it be the heavy rains that has caused this?
59
Window Cleaning Forum / Re: Where Does The Time Go?
« Last post by AuRavelling79 on February 24, 2026, 03:44:45 pm »Ive been full time 10 years, almost 12years since I first made a trolley out of a barell, some sack wheels i found, a 10 quid chinese pump off ebay and some pond hose from b&q. My first pole was a Harris pole with a Tesco sweeping brush
I started off on ladders part time in 1996.
In 2005 I bought a Fogwash system off of Peter Fogwill in Broxburn Edinburgh.
It was a trolley that took one or two 25 litre barrels and had a small battery and 60psi shurflo pump on board.
It had 40ft of aluminium Unger twist lock poles which was ok up to about 20ft but incredibly whippy beyond 30!
That sat in the back of my Volvo 240 estate with six 25L barrels.
60
Window Cleaning Forum / Re: Where Does The Time Go?
« Last post by Stoots on February 24, 2026, 02:54:56 pm »Ive been full time 10 years, almost 12years since I first made a trolley out of a barell, some sack wheels i found, a 10 quid chinese pump off ebay and some pond hose from b&q. My first pole was a Harris pole with a Tesco sweeping brush 