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Can peromonosulphate drastically reduce ph? I ask this as my spa ph dropped off the scale and chloring readings were at zero despite have ing been added daily.

You will see from my earlier post that I had the same problem in spite of having used MPS in the past. The only difference this time was that spa had a silver cartridge installed. I since removed that and did not use spa for a couple of weeks but maintained Chlorine levels and PH. Used spa for...

New 1.5# that I never used when I sold my hot tub. Put into pool rather than just throwing away in hope that it might help reduce chlorine demand which has increased due to temps over 110.

yes, today

I understand that after monopersulfate has been added, that the regular Taylor test kit will not give accurate CC readings without using a special test reagent. How long should I wait before using the regular Taylor drop test? In other words, would the MPS be permanently affecting tests?

Need to replace Pentair pool light which has 5.75" dia face plate but the closest size I find online is 6" so I am concerned that the retaining screw and bottom lug will line up with existing fitting as I think replacing the can would be a real pain which would necessitate drilling or cutting...

FC was at 3, Did not measure CYA, but it would have been low as very little dichlor had been added as liquid CL was used initially. PH was 7.6 and Alkalinity 60

That does not answer my question regarding MPS. Also, what makes you think that the sanitation is inadequate? Before spa was last drained I had let it sit overnight with spa flush chemical and when I refilled it I put in enough liquid chlorine so as to raise FC over 12 ppm then let it sit...

I had been using our hot tub for two weeks after filling it and balancing the ph, alkalinity and dichlor, calcium hardness etc to correct levels. I then added 1.5 oz of MPS and waited 2 days before entering spa. Within an hour after exit I had bumps and redness on my back which itched. After a...

Pentair pool light flips gfci instantly in spite of changing breakers.No moisture inside fitting. If I wire it directly and bypass the gfci it will stay lit. Main breaker is rated 25 A as is also the gfci.What couldbe the problem?

To clear up a few misunderstandings, the SWG I had been using was a Zodiac model C170. If it needed cleaning only once a week I would not have minded, but I had to do it daily as the plates became bridged with white calcium deposits. Also the cell s only lasted for one season. Since using liquid...

Just adding more salt will NOT affect the chlorine or CYA level. If I do not use tablets I will have to use liquid Chlorine, the only other alternative is to add a swg but I have been there and done that in the 50 years I have operated a pool here in AZ and would not want to go back to that as...

Salt will not make any difference to cya readings. Anyway I already have some salt added as it seems to make the water feel softer, but maybe that's psychological? The only way to lower cya is by draining and replacing, that is why I am concerned about adding more tabs.

I had been using liquid chlorine but as my local HD was out of it I started using trichlor tabs which I had bought for when I go away. My CYA was 45 but went to 70 after only 7 tabs had been dissolved. I still have over 50 unused tabs and would like to use them for the convenience but do not...

I am also in Arizona and normally use 32 oz of 10% liquid CL a day. My CYA is 70. I agree with the person who mentioned that it is important as to how it has been stored. I had been buying from Walmart in the 2 pack carton but now they have eliminated the cartons and just sell individual gallon...

I had to replace sections of pipe but I now have a leak from the connector screw in to the top of pump. During the repait I had to turn the elbow it was connected to by about 45 deg out, ie anti CW, and then back again to its original position. Fortunately part of my repair included a...

This product did not seem to change Phosphate level much. Level was at 500ppb initially before adding 2oz SeaKlear. 3 days later it was about the same. I then added a further 8 oz and a week later phosphate level went to between 300-500., which level was tested by myself using the phosphate test...

I had a SWCG which was made in Australia and went under the brand name of Zodiac. That unit was a nightmare so just make sure that Circupool is not made by the same company!

Agree, I also cannot understand the need for so much acid in an effort to keep my ph at 7.8. My CH was 260 in May when I had changed the water and is now 450. Other than the problem with needing so much acid and the rise in TDS, the water has always been sparkling and combined Cl has always...

I drained and refilled my pool in May 2017 and the TDS tested at 1700. However by September it had risen to 4000. I had been adding 4 gall of acid 31% every month at the rate of 16 oz day, to control high ph. Is it possible that the acid has been etching out minerals etc from the pebbeltec to...

Just tested my TA again and it was 150, so I took a sample to pool store and they came up with 140. It seems that my test kit is close to accurate but my TA has gone from 90 to 140-150 in a week without adding baking soda, but 1" of rain fell in that time. Meanwhile PH remains at 8+ despite...

I had been buying Clorex in the 3 pack from Costco in the Phoenix area where it was selling for $8.45 until two weeks ago when the price suddenly went to $9.95! Why would chlorine have increased by 15% is a mystery, but I am sure Costco are having to pay more for it. This is Chlorine, not gas!

For the past week every morning the ph has been 8+ and I have added 16oz acid every morning and one day same at night, but the ph seems to stay at 8+. I have never had that problem in past seasons and the only thing which is different is that we have had a lot more rain this year, which is very...

In the past 2 weeks I have added total of 2 gall 34%acid and the ph has never gone below 8! Since adding 34 lbs of baking soda over the same period my TA is now 90 which should be ok. A week ago we had over 1" rain and the water temp has been a high of 88 and morning low of 83. During the past...

All tests done using Taylor K2006 kit. Surely the amount of baking soda added should have raised TA considerably by now?

A couple of weeks ago my alkalinity was at 90, and when I tested it a week later it had dropped to 20. I put in 6 lbs of baking soda which raised it to 30, followed by another 3.5 lbs which brought the TA to 50. The next day I put 13.5 lbs in and when I tested the next morning the TA had only...

I read somewhere that the salt gen uses about 500w, but presumably only when hoked up to sell, so was wandering how much it would use with just the transformer connected to the pump as if it's something negligible I will leave things alone but otherwise would remove the control panel but it...

Sorry if this is a silly question but I have given up on using my salt cell and disconnected the wires from the actual cell. However the control panel is still connected to the pool pump when the pump is running. so that the terminals still generate 12V. Would that still use as much electricity...