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Mine starts at 10 psi so if 10% more or even 25% it's only between 11-12.5psi. I guess that does sound like about between 6 weeks for me, too then. I haven't tempted to open up the big DE filter....it's massive for me! Maybe, I'll have my husband try, but he's leaving the pool up to me to take...

Thanks Jim on backwash info. I have DE filter and it is good to know you don't really need to backwash much, if any at all. I guess I'm at the very minimum according to that chart. I can test again and add more tomorrow. Oh! I just did a water exchanged two days ago to dilute the CYA level...

Should or can I backwash then add DE first, and then right after that do the chemical tests and balancing water?

Hello! I'm still new and still learning how to take care of our new built pool from last December 2019. 11 Temp 76° FC: 3.5 CYA: 85-90 TA: 80 pH: 7.5 CH: 350 I added a little over 40oz. of 12.5% liquid chlorine after test to try to get FC level up to recommended amount 7ppm. No more tablets...

Thank you. I like the app! I was messing with it earlier, but couldn't see where it gives me the amount to add. However, I found it now....towards the very bottom left corner! ☺

Thank you. I will do like you said and monitor throughout the winter. I've read that chlorine level should be 7.5 percent of CYA level. Is that correct? If so, i need to raise my FC to about 6ppm? How do I measure what amount of 12% liquid chlorine to add to raise another 2ppm?

Water exchange is done and filter has been running for 2 hours and then I took the test. My new tests... Temp:85° pH: 7.4 FC: 4 TA: 85 CYA: 85 CH: 350 CYA didn't go down as low as I had hoped. Should I have done the exchange lo ger? CYA started at 130. Pool volume is about 10,750 gallon. I...

I believe Mark suggested to brush after the exchange while filter pump is back on. Also, I'll be doing a set of test after a few hours so I'm guessing brushing to get the water moving and whatever stuck on plaster out is good? I calculated wrong on time. I started the exchange at 11:30am...

Thank you. I always tend to over think things. I have about another 3.5 hrs left of exchanging. Then, I'll turn pump on and brush really good. Wait about 3 hours and do a complete test.

Should I perform a backwash right after the water exchange is completed? Or a filter clean?

How much liquid chlorine should I add and how often should I add while filling? My garden hose is pumping about 5 gallon/minute, so it'll take about 24-25 hrs to complete the exchange. Is it safe to pump effluent water into the backwash ptrap(it has an opening so i can just put the house in)...

Ah thank you! I was just going to ask what chemical I would need to add while the water exchange is going on. I'm guessing water water/chemical balancing will need to be done afterward, too? Will there be a need to do a pool start-up like if it was newly added water?

Silly question..the article stated make sure pump is off while doing the exchanhe....that means just have everything turned off (switching the system to Service Mode) right?

I did the extended CYA test and I got 135 (I couldn't decide between 120 or 140 depending where I stood to read it). How do I calculate how much water to exchange?

Thank you! I really like the exchange water method. I'm hoping I can do that. I will also try to do the extended CYA TEST method to see if I can get a better CYA amount.

Hi Maddie, All pool builders we spoke to advised us not to get a salt water pool due to damaging equipments and to furnitures. I believe our last pool maintenance guy added too much? I test my pool on regar basis (after a day or two after pool guy does it). One week it just shot up way above...

Thank you!

Hi, Please help with lowering CYA level. I've been given different info on ways to lower CYA level and I'm not sure which is best for my pool. This is a new pool that was built in December 2019. Pool Builder said to never empty the pool completely, but one pool technician/maintenance said to...

Hi! I'm using Taylor K2006C test kit. I was told by one pool technician that is the oy way to remove that much CYA because it sticks to the plaster. My pool buyer said not to drain pool so I'm nervous. Yes new pool since December 2019.

Hi! I finally signed up to Trouble Free Pool after reading so many helpful reviews and advices on here. Thank you! Our pool was finished last December (thank goodness right before Covid-19) and we've been enjoying it. I've been trying to learn as much as possible about my pool, but have not...