High FC and High pH

[tstex]

Hello to all,

We've been getting some kind of particles in the SPA via the blower. Now have been running in SPA mode for 10 min's 3-4 days per week, w BLOWER too for 1-2 min's. The SPA spills over into POOL when main VSP is on daily.

The pool guy came [we are now using liquid bleach bc I wanted to get rid of pucks due to their infamous higher CYA levels] and applied some more liq bleach [12.5%] and I think he ran some in the blower to disinfect it. Well, I did the quick FC & pH test and the FC was orange and off the charts The pH was at the top or 7.8-8.2 range. When I test the FC & CC via TF-100, I used 34 drops to clear the water, so that's an of 17.

I did not perform any other tests, but I am filling the pool w about another inch of water to the drain line. It is not sunny now and the CYA was last tested at 55-60 about a week ago. I am wanting to know what I need to do or not do at this point? Also, it is ok to use the SPA tonight or are the FC levels way too high?

Thank you,
tstex

 

[robdac]

If the pool guy is coming once a week he has to put enough chlorine in the pool that it still has a minimum level left when he comes back the following week. A FC of 17 seems pretty reasonable to me since he's not adding any for a week.

 

[tstex]

The last time he was here he was supposed to leave me some CL, but did not. This time he did, so I will add when need. I bought M-Acid [30%] and will adjust when needed. After I get this down, we agreed I would start maintaining pool and when we left for vacation or extended periods, I would pay him on a per trip basis. He's really a good guy, been servicing pools for 28 yrs and was recommended by a good friend. Her husband died and he used to take care of the pool, so they hired this guy and we have used him too.

Thanks, tstex

 

[tim5055]

With your FC at 17 the pH test is inaccurate, reading high. This occurs when the FC goes above 10.

 

[tstex]

With your FC at 17 the pH test is inaccurate, reading high. This occurs when the FC goes above 10.

Perfect, this is what I needed to know. How long, typically, does it take for the pool's FC to lower? Water temp goes from 69-73 now, CYA 55-60 and sun is in and out now for the next 3-5 days. No activity in the water and no leaves or anything of substance in the water. Thanks again.

 

[bigglesworth]

Obviously it will vary by pool. My pool consumes about 2ppm/day during summer and probably a little less than 1ppm/day during the winter. I'm in Southern California and have a 14,000 gal pool. CYA is about 40.


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