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Do you recommend partial drain or complete drain?

fill water CH 80-90 today, 125 last month fill water TA 150-160 fill water pH >8.2 (bright red) do not have salt strip to test fill water. will get it if it's important. pool last drained 2.5 years ago, by half, due to high CYA, CH. Had very little rain in the winter for dilution. best option?

it's been hard to keep the pool balanced: high TA and pH despite pouring in tons of acid and aerating; not able to maintain a low enough TA/pH to keep CSI balanced; high CH, high salt and frequent low grade algae are other factors. Question is if I can let the pool go for A FEW DAYS if it's...

May be a stupid question: If I plan to drain the pool in a few days, can I stop adding any more chemicals? been dumping in tons of acid and not able to bring down TA for any significant amount of time. also has low grade algae. FC 5-9 pH rises quickly to 7.8, been unsuccessfully trying to...

I have not taken the pool guy's advice, have always followed the pool calculator. Had to go there to get equipment fixed. Just wanted to understand why he can get away with doing something "wrong" for 40 years.

I have not had chance to drain pool yet. Had water tested at pool store, was told salt level is >3000, TDS >5000, and that pool definitely needs to be drained. 2.5 years ago, salt was 2500 before it was drained by half and refilled. I did not have salt retested after the refill. I don't...

Good question. No, just bleach and MA. Water source differs (river vs. well) during various seasons. This area is notorious for having hard water. I was surprised to see the CH number for tap. perhaps now water supply is well. Thank you!

tap water CH approx 125. How do you interpret that number? pool was partially drained 2.5 years ago. CH went from 600 to 350. Now it has climbed back up. just FYI. discovered 1 of the 3 returns pointed downward. repointed up to aerate and bring down TA. It usually hangs around 70. Thanks.

numbers: FC goal 4-8 CC 0-0.5 pH 7.8-7.9 CH 680* TA 80 CYA 50 I noticed more MA requirement and more frequent algae breaks. Pool has natural aerator that increases pH. Is higher MA demand due to high CH? Does this pool need to be drained? Any specific instructions as to how much to drain...

Ok, will do. Con't to shock today?

Thank you for all your advice and comments. 4:45 pm FC 14.5, CC 0.5 added FC to target of 16 9:30pm FC 15.0, CC 0.5 7:30am FC 15.0, CC 1.0 repeated 8:00am FC 15.5, CC 0.5 water still looks clear, tools in the pool. pump ran 7hr yesterday (2 more than usual). Now what? Thanks.

Was CC supposed to be 0.5 even when I had clouds of algae after brushing? Is my chemical bad?

I don't get it! Am I supposed to live with 0.5 of CC? I proceeded shocking again today b/c my FC loss per day is more than last June, even with lower water temp. numbers before shock at 11am: FC 5.0 CC 0.5 pH 7.5 TA 70 CH 420 CYA 50 temp 74 pump running 5hr overcast today then, added MA to...

Oh one more thing, CC was 0.5 even when there was visible algae. That's why I wasn't sure.

Thanks! My CC has always been zero! The pink tinge confuses me.

Had a little bit of algae in the pool, CC=0.5. shocked to CL=18 with CYA=50, overnight CL loss was 0.5 with the very first testing. So I let the CL drift down. On next testing, CC is still 0.5 with normal within range CL level. Brought CL back to 18, brushed pool better this time. let CL...

2 years. Thanks.

I found the flippers on the left and right sides of the Navigator coming off in pieces. Instead of a semicircular shape, each has chucks missing. The navigator has not been moving very well. So recently flow was adjusted by a professional pool man so that it is moving at adequate speed to...

Thank you.

If trichlor is used as a source of chlorine (vacation), does the pool calculator take into consideration of its effects on pH in the acid needed section? In other words, is the amount of MA calculated lowered because of using trochlor?

I actually want to save what's not needed for another vacation. Besides, don't want to raise CYA too much with trichlor.

I will be using Tri-chlor 1 inch tabs while on vacation for 10 days. I've never had any experience with tri-chlor. I got an Aqua chem floater which contains 4 lbs of 1" trichlor tabs. http://www.aquachem.com/mp/v/index.jsp? ... mt=default I need to raise FC by 10ppm, lower pH by 0.5 to be...

Sorry about my absence for the past few days. Thank you very much for all your help. I have a better understanding now.

Thank you for your replies. Your CH level is a little high, but it isn't off by enough that you need to do anything about it. How high should CH be before I need to drain the pool? Your CYA level is fine. Near the start of the season you want to raise it to 50, and it will then drift down...

Here are the most recent test results: FC 2.5, CC 0, pH 7.7, TA 70, CH 400, CYA 40, temp 81 2 months ago, some of the numbers were: TA 100, CH 360, CYA 60 Goals according to pool calculator: FC 3-7, pH 7.5-7.8, TA 70-90, CH 250-350, CYA 30-50 Since taking over pool maintenance, all I have...

Preparing pool for 1wk of vacation. avg chlorine loss/day is 2ppm, pH rises on avg 0.1 per day. I don't want to bother other people to add chemicals in midweek. I only have bleach. Is it bad for the pool and equipment to start the vacation with a pH of 6.8 and Chlorine level of 17 so that at...

here's a picture of the pool web. http://picasaweb.google.com/lh/photo/Mm ... directlink there are definitely fewer ducks, but one or two still manage to get through the web even at night. i'm amazed.

Thanks! i feel better now.

Chlorine demand of the pool has been going up. FC has been decreasing by 1.5-2ppm per day. I thought duck feces in the pool had something to do with it. However, no feces today, but still lost 2ppm FC. has been using 6% bleach, just switched to 10% liquid chlorine. FC level has not been going...

Love all the ideas. My pool now looks like a spider web! Don't know about the ducks yet, but found a dead bird in the pool. :cry: on a side note, when you shock, do you keep the pump running until the process is complete? redid FC and CC today. Still losing 1.5ppm of FC per day, but...