Recent content by mgianzero

I brought my pool water to local store to measure the salt level because my salt cell was saying it was low. Indeed my salt was on the low end - so I'll add more salt. Simple. But then she told me my total alkalinity was 21. TWENTY-ONE! I've never heard of pool water reading that low. I...

Thanks so much! So my understanding (and that of many of the experts on TFP) was that my pool was still developing algae for two reasons: 1 - I was tittering on low CYA since I had it around 50, which should be higher, especially in the higher temperatures of summertime. Now the pool water...

Okay, so here's my follow-up from my SLAM process: Even thought the pool looked really, really crystal clear after day 3 of the SLAM, It took me 6 1/2 days to get to meet all the criteria (no visible signs of algae, OCLT less than 1ppm and no CC). The OCLT was the most difficult to pass, which...

Okay. I thought he was making something up here. Good to know that there is such a phenomenon and that it doesn't pertain to my situation. Appreciate the explanation. Thank you!

So I SLAM'ed my pool today. Actually got in it an pressure-wash brushed entire pool and cleaned and ran my robot as well. Initial shock level was 20.5 which correlated nicely with TFP SLAM chart. 4 hours later and pool is looking so much better - no obvious green algae on any surfaces, but...

Thanks so much! - That helps to clarify some things. Off we go to the pool store for some liquid chlorine!

Got it. So assuming my pool is 25,000 gallons (it's a very odd shaped pool and very difficult to estimate) and shock level is 20 (starting at FC of 4.5) - that would mean I'd need about 3.9 gallons of liquid chlorine (pool store grade at 10%) according to my calculations to REACH a FC level of...

Thanks everyone for chiming in. My plan then is to lower pH to 7.2, recheck my CYA and FC before before determining my target levels for the SLAM process. One of the problems I find with SLAM'ing is that it can be difficult for me to do an overnight FC loss test every night since I have to...

As much as I appreciate all the help, why do you say I do not understand the process? I never said it was a one-time dose. My understanding is that "shocking" is adding chlorine to raise levels higher than normal to a designated "shock" value to kill algae, but that SLAM'ing is a procedure...

Yes, I do have PoolMath app. I can start using it again. But what should be my next step? I just bought some more liquid chlorine. Should I shock now at the lower CYA level (so I don't need as much) and then raise my CYA levels to 70-80 once my overnight FC test is < 1 ppm? Or should I just...

My Pool description: I have a pebble-coated pool (about 25,000 gallons) with a SWG, a secondary tub with three fountains, 2 shear descents inside, all connected by a spillway. I also have a raised hot tub connected by another spillway. I run my main variable-flow pump at 50 GPM for around 12...

I've been taking care of my pool for years and algae is always sneaking up on me, regardless of how diligent I am about chemistry. When my pool gets overwhelmed with algae, I simply SLAM it and start over. I find that when I SLAM, the pool cleans up in days. So far I've had to SLAM it twice...

I own an in-ground pool which has a pump for the pool (inline with filter and SWG) which can be switched to run 4 jets in the pool with or without the gas heater. My other 8 jets use a separate pump system which merely circulates the spa. With our concern for efficiency these days, why does...

No, that was not my ultimate strategy. I was "trialling" what would be required to convert to a liquid chlorine (or similar type system) from my salt system. I was planning to try it for a few months to see how involved or difficult it would be to maintain this way. If I then decided to...

Guys - Pardon my stubbornness here, but I just don't see how the TFPC method is very practical. According to everyone's calculations, I'd have to go through about 2 boxes (4 gallons) of chlorine a week and test the pool every three days for my 20,000 gallon pool. Purchasing a 15 gallon...