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Good morning, Trying to better understand Parts Per Million. Is a FC of 8.6 read as 8.6ppm or am I way off base? Thank you! Lyman

Greetings, I have had a Hayward SP-1580 1HP pump for several years and it was time to replace it. Not a big deal. I went to the pool store (ugh) and purchased another SP1580. As you can see in the attached photograph it leaked like crazy at the output to the Sand Filter. I tried multiple hose...

Greetings, Day three of rain save for brief interludes lasting an hour here and there. Day four should end ~10:00 AM tomorrow. Thus far through draining water off pool cover with a bucket it's been kept out of the pool. The four breather safety holes are atop near rails. Once per Sunday night I...

Hi, Rather than using Soda Ash I'd like to switch over to Borax. Knowing to avoid Bleach with various additives such as fragrances, etc., I'm not sure if the attached is what I want with it's reference to detergent. Any guidance appreciated and thanks! Lyman

Just wanted to say that this is a great Forum....indeed the entire website is a wealth of information. The help I have received here has been invaluable and I still can't wrap my head around the rapid response times when compared to other sites (Woodworking, Automotive, etc). EVERYONE has been...

Hi All, What is the impact of Dry Acid on FC and pH? Just fired up pool yesterday, pH is far >8.0, would like to get it down to 7.7. FC wasn't all that great at 4.4 so added some chlorine which is likely only going to drive the pH up even more. TA and CYA both at 50, would like TA higher...

Greetings, Just added some chlorine. 4,545 gallon pool so Pool Math only called for 500ml. What is the wait time to test? 30 minutes is what I seem to recall..... Thanks! Lyman

Greetings! Hope everyone is healthy and doing well. Pool filling now, will add Chlorine tonight. What's the waiting period before adding liquid CYA? Pool is 4,545 gal. Safe to swim time after adding this initial CYA? Stay healthy everyone. Best, Lyman

Hi All, Happy Spring, Thank God. My Pool Math subscription was set to expire mid-May so I thought I would renew early for another year. I selected 'Restore Subscription' and it moved the date to June 5, 2021. No prompts for credit card, etc. Any idea why just over a month and not a full year...

Greetings!! Recalling a 10" snowstorm on May 10th circa 1978 I'll roll the dice and say it anyway - thank God that Winter is gone and it's nearing the time to setup the pool. It's been a long, cold Winter here in the Northeast. Couple of quick questions. Have the Min / Max parameters for Pool...

Good morning, With FC being >10.0 the pH reading is for all intents and purposes unreliable, correct? Thought I had seen that mentioned here. Thank you, Lyman

Greeetings All, I found this post by OTPirate going back to 2018. Is this still a valid procedure, particularly what a CYA of 50 should look like? Best, Lyman "The CYA standard is so you can adjust yourself to the standard, not the other way around. I trust the chemists at Taylor Technologies...

I've been using Pool Essentials Chlorine for longer than dirt is old and I'm not going to have enough to make it through end of August into September. So Bleach is my option. If I recall, Clorox is out but I've heard Walmart's Great Value mentioned albeit it's only 6% Sodium Hypochlorite. I...

My 4 year old Grandson just threw up in the pool. I have not encountered this before and other than skim out what is floating around and vacuuming I am at a loss. FC I have been keeping high. This morning at 1036 EST the readings were as follows (it is now 1449 EST). FC 8.4 CC .2 pH: 7.6 TA...

Found this article, a bit long but I'm curious as to TFP's take on it. https://aquamagazine.com/service/is-superchlorinating-the-best-way-to-eliminate-chloramines.html I've no opinion one way or the other. Thanks, Lyman

The pool hasn't seen as much use lately, three kids between the ages of 4 - 14 in it maybe 2 hours a day. For that reason I've been keeping the FC level higher than the recommended and ideal range for the given CYA level to kill any bacteria, etc. Historically the CC has either been 0 or .02...

Greetings, What is the wait time for adding Chlorine after adding Liquid Conditioner? Impact on pH of the Conditioner? On a side note, will it cause a sudden rise or lowering on the FC? If I recall, TA will be affected. Many thanks, Lyman

Greetings, Not sure where to post this but my logs that I was looking at 30 minutes ago are....gone, including today's entries. They went back to July, 2019. Last week I upgraded to a Pool Math subscription. Anyone know what may have happened? Thanks, Lyman

Pool is up! Using a product such as Blue Shield Shock, what is the wait time before it's safe to swin assuming all other parameters are in spec? I assume the shock should be added after the sun sets? As always, thanks. Lyman

Greetings, I hope everyone is doing well these days and staying healthy. So far so good here. So far. I asked this last year and I apologize for doing so again but I cannot locate the Threads even when searching by my username as poster so please forgive; do they fall off the Radar after 'x'...

Greetings, Would you happen to know the shelf life of opened (sealed afterward) containers of Soda Ash and pH Up / Down chemicals? They're from last Season, stored in a dark but dry area of the basement and was wondering if I should just buy new for this season. Thank you, Lyman

Greetings All, I hate Pool Stores, let me say that up front. With that said, a local Pool Store has as of this writing a substantial supply of Liquid Pool Shock. The pool will not be opened until June. These bottles are not sealed but only have a twist cap as seems to be common for this...

I've been using Pool Essentials Liquid Chlorine (12%) but it's all be disappeared. I assume I can use off the shelf Clorox Bleach, non-scented? I believe it's 10%. Any keywords to avoid such as 'Now with Extra Whiteners", etc? Should I expect any difference in impact on CYA, pH, T/A from what...

Greetings All, I have been using Pool Essentials Liquid Chlorine (10% Sodium Hypochlorite, 90% "Other Ingredients") and recently came into a good supply of Blue Shield 'Pool Shock' (12.5% Sodium Hypochlorite, 87.5% "Other Ingredients"). Strength aside, any issues in converting over to the Blue...

I am having an issue with Pool Math per the two attachments (could not fit entire screen in one capture). It is telling me that "Your target is outside the suggested range". I believe I need to SLAM the pool in the the CYA has been creeping up and is now at .4. This pool is in the direct sun...

I had to add some Dry Acid to get the pH down. T/A, FC, CYA and other parameters were within TFP's spec. It dawned on me if adding the Dry Acid would have any impact on the level of FC? I know the preference appears to be the use of Muriatic Acid. I've been told this is not really suitable for...

Greetings, In the past I have typically shocked my pool once per week on a Friday night using an amount pursuant to Blue Shield directions and have let the filter run overnight so the Grandkids can go in come morning. Pool is Intex UltraFrame, 4750 gal, 18' x 9' x 52". All has been good. I had...