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I'm hoping the scale is indeed the most 'dissolvable' calcium. If the calcium hardness level drops below 200 I will hate to add calcium with scale on the walls! Opened 2016 with ph a little over 8 (closed in 2015 at 7.2) and TA of 50. Add acid and baking soda on a fairly regular basis to keep...

Greetings! We refinished our 20 year old pool in 2015 with SGM Diamondbrite. Over the first winter (closed and covered) it developed calcium scale. I know the solutions to get rid of the scale, so I'm not looking for that info. The scale was all over, but keeping the CSI low, it is now only...

Something else to try. I have a new Pentair Superflo VS pump. I had air bubbles in the pump basket, no water leaks on the suction side, small water leak where the fitting exited the pump (pressure side). Tried the usual for the suction side air bubbles: skimmer, pump basket cover gasket...

Hello Pooldv, Thanks much for the response! I've read a ton about scaling on this and other sites. Ran my CSI at almost -1 and brushed a lot for a week a while back. Seems the lower ph helps and perhaps some of the products I used (Beautec and Scale Free). My CSI at opening was negative...

Greetings from PA ... new Diamond Brite finish May, 2015. Kept numbers good May thru October, even CSI mostly negative. Opened 2016 to scale. Keeping ph lower (7.2-7.4 rather than 7.6-7.7) and it got better, but still have some scale on walls. Any of the scale removal products recommended...

I'll second the reply from Catanzaro. Years ago I bought the biggest baddest shop vac I could find (since I needed a shop vac at the time). It produced one bubble from my bottom drain after several minutes of blowing. Then I rented smaller air compressors from a rental place for several years...

Thanks for the replies. TFP Pool School lists pH numbers: 7.7-7.8 is ideal but anything 7.5-7.8 is doing fine Rick

First a huge thanks to everyone for this site and all the info, posts, etc. I've learned a lot since late last year after much frustration with several pool stores. We had our 20 year old pool refinished with Diamond Brite on May 9. Coronado's Pool Plaster did a great job and I've worked hard...

They have what I call "single and double decker" Gizmos. The double deck ones are basically 2 Gizmo's in one (one on top of the other). Assuming the double will fit in your skimmer (measure the height from the bottom of the skimmer to the lid), I'd get that for the extra capacity.

I've used Gizmos for years here in the frozen Northeast without incident:) The key imho is to make sure of 2 things: 1. The Gizmo's are still good i.e. have no leaks. I check them by shaking (to see if they have any water in them after the winter) and holding them under water to see if they...

I use expandable rubber plugs, but just in the union holes pretty loose. The floor drain is shut off by the Jandy Valve, and the skimmers have expandable plugs in them (along with a Gizmo for water expansion that gets into the skimmer). Same with the floor returns ... the Jandy Valve has them...

Are you sure they are both drains? We have a main drain (actually 2 side by side) in the deep end. In our shallow part we have 3 floor "returns"... not drains, in a line. The main drain and the skimmers are on one Jandy Valve (both take water in). The floor returns and wall returns are on...

My pool pvc has unions ... I take my pump and filter inside each year. After I disconnect everything I use a Cyclone Liner Vac to blow out the lines. Low pressure but LOTS of air volume! I used to use a rented air compressor, but nothing blows out pool lines like the Cyclone!

Thanks much for the help Jeff!!

Thanks for all of the great info everyone! I did the "dilution" CYA test and I'm indeed about 100 CYA. I also did an OCLT last nite and there does not appear to be anything growing in my pool (level stayed the same). My wife agrees that this is the clearest water we've ever had in the pool...

Greetings! Rick here. I'm new to the site but have been taking care of our pool for 19 years. We have a 23,500 gallon plaster pool in Bethlehem, PA. Hayward 1.5 HP single stage pump, Hayward DE Filter, Polaris Pool Cleaner. My wife pretty much did the chemical thing until about 4 years...