Getting itching rashes after swimming

[CandyMoss]

That'st correct - it was 230 before I emptied half the pool and replaced the water. The pool store's CYA read 230 before water replacement and 217 after. Posters suggested that CYA readings become inaccurate when they get up to a certain point - so I dilluted the water with 3 parts distilled water and 1 part pool water, then tested it with the Taylor test kit and multiplied the new value (35) by 4 to get the CYA number. That number came to 140 - so I'm within Ben's 100-200 range for min 8ppm.

I just want to be able to swim this summer without spending too much $ on a full water replacement since I will be redoing the whole pool in the fall - so the chart hopefully lets me do that after lowering the CYA to 140.

[CarlD]

OK,
I never thought you could dilute the CYA solution but it makes sense.

It's a best-guess table, so I always view the range of FC as connected to the range of CYA. If you have a CYA of 140, I would not let my FC be 8. It's PROBABLY Ok, but if you are having troubles at 8 then you should be at 11ppm or greater.

You can still dump and refill to get your CYA lower--140 is high, but you can use the high CYA methods safely.

[medvampire]

The main concern for me was the possabilty of Pseudomonas and if so they need to see a MD. I have seen a few cases of Pseudomonas septcemia caused by a hot tub. Talk about some sick peps. One or two cases was from skin infection and the others from resportory source. I guess that is why I am over cautious with the kids and our pool.
I agree we are all here to help each other and we will miss things.
Thanks
Steve

[CarlD]

It sounds like a very unpleasant condition.

But that's not my dept.

Luckily, chlorine kills just about everything.