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Hello, somewhere in pool school there is a section on how to add pool chemicals which I can't locate. Can you tell me how to add calcium increaser to avoid a cloudy pool. Thanks.

Hello, typically when I reduce pH I see CSI also decrease (i.e. low Ph tends to push CSI lower and higher pHs push it higher). However, for some reason, on pool math with my current chemistries that relationship changes and the higher my pH is the lower the CSI. For example, today my pH tested...

Hello all, just wondering if I should leave my pH at 8.2 if CSI is good. Also, a reality check please. I am considering borate to stabilize pH. According to poolmath I need about 50lbs. Does this sound right? TIA

I am considering replacing my single speed pump with a Calimar VSP, however, I am wondering how it will interface with my SWG. Specifically, I now have a timer that controls both the pump and SWG, the Calimar VSP seems to have it's own timer for operation. How would i connect the SWG so that it...

I have a Polaris P955 that powers up OK, but as soon as I press the start button, it turns off. Any ideas or must I take it to Leslies for diagnostics?

Hello to those in the know. I have what I think will be a quick question. The electrician who hooked up my Circupool RJ 60+ used a #2AWG bare copper wire instead of #8 and connected it directly to the heater instead of the bonding wire for either the pump or heater. Is this OK?

Hi there. Last spring I did a treatment on my pool to remove stains. Worked great. This year I'd like to drain my pool by half as I got tired of adding sequestrant all the time. Which brings me to the partial drain. Since the pool is still covered (solid cover), I'm thinking of draining by...

Hello, I'm wondering what is going on with my pool. When I add chlorine to the pool, I immediately get a white cloud that spreads throughout the pool (gives a great visual as to water flow in the pool) and is then accompanied by a slight, but noticeable rise in pressure at the filter. It clears...

Hello, I just noticed my spa has what looks like "pimples", small white bumps. They can be easily scraped off and seem to dissolve. I did a suucessful AA treatment earlier this summer and my CSI has consistently been negative. There is no sign of the "pimples" in the pool. I checked hardness...

Found a pretty good deal on liquid chlorine from HD supply...

I've been reading the instructions for the AA treatment and am getting all my ducks in a row. While I wait for supplies to arrive I thought I would get a better handle on rebalancing following the treatment. My biggest question is regarding rechlorination. Instructions say to slowly bring up...

Hi All, I'm preparing for an AA treatment to remove iron stains. Can I use this? https://www.amazon.com/gp/product/B000701NUO/ref=ox_sc_act_title_1?smid=A2J4ZY0V0O83WY&psc=1

Hello, and happy spring. My pool math subscription was to renew today and by the looks of it, it did automatically, however, I can't input my new data. Can someone help? Thanks.

Hi there, Hoping to get some input from some of the resident chemistry gurus here. I completed the Jacks Magic stain solution 2 procedure (worked great). All is good except I can't maintain a FC level, it is all bound up in CC. I've been using Polyquat 60 since I started 2 weeks ago so all good...

Hello all, I am preparing for a stain treatment and I see it is recommended to bypass the heater. Sadly, I don't have this capability with my current set-up. I'm hoping someone here can take a look at my plumbing and suggest an alternative way to accomplish this, or even suggest a plumbing...

I am going on a week long vacation and would like to run my thoughts on a management plan by the experts. Let me start by saying that I found TFP 3 yrs ago when I became a new pool owner. Fortunately, I found this site early and have enjoyed sparkling water since! Thanks!! I typically keep my...

Hi All, I opened my pool this week and although dirty but clear (solid cover), the spa has a yellow bathtub ring around it. It doesn't seem to respond to either the ascorbic acid test or the chlorine puck test. I've had water at SLAM level for a couple of days and notice no difference. I'm at a...

Hi There, My PoolMath app renewed automatically on May 1st, but when I go to use it on my phone, it tells me a subscription is required. I've logged out and back in, deleted and re-added the app, and confirmed payment on my credit card. Any ideas?

Hi All, We just bought a solar cover and cut it to fit our free form pool. Question of the hour is hour do we keep the water that comes from the spa overflow into the pool from pooling on the cover? I'm worried that the cover will sink to the bottom of the pool:o Thanks in advance for your help.

Hello TFPers. My filter pressure gauge suddenly reads zero. Since by all indications, everything is working (good flow thru skimmers and from returns), can I assume the pressure gauge just needs to be replaced? If so, is this something I can do myself? Many thanks! Jean

Hello, Here's what I hope is a quick question from a new pool owner. How often does a DE filter need to to cleaned (not backwashed)? Thanks in advance:)

Hello all, I just wanted to take a moment and thank you. Considering I'm a total newbie, my pool looks AMAZING as you can see in the photo. We bought this house in May and I was going the pool store route and realized that I would solve one problem only to encounter another. I found TFP, and...

I'm confused about CSI. As I understand it a negative number indicates a tendency to corrode while a positive number indicates a tendency to scale. With a plaster pool, wouldn't a positive number be more beneficial? My most recent CSI was -.056, and ideally should be higher. I don't get it, what...

I had to drain the pool because of high CYA. My question now pertains to my DE filter. After a normal backwash, I normally add 4 lbs of DE to replenish what is lost. When I drained the pool, I essentially did a long backwash (filter to waste draining through the bottom drain). I assume I need to...