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  1. tcat

    Pool Math APP - Free version

    Is there a "free" AND "paid" app or just free and pay to get unlimited logs? I've tried the app off and on (free) and can never get it to overwrite a log. I enter new values and it just defaults to 4 months ago. Needs to be an "edit" button. Back to Pool Logger I guess.
  2. tcat

    Betta ain't cuttin' it.

    Was totally clear 30 minutes ago, then the wind blew...
  3. tcat

    Cell cleaning

    Last time I cleaned the cell (3 months ago) bubbles stopped at about 15 minutes. If been getting check cell light for 6 months, so decided to return it for warranty. So they said return it cleaned, but now it's been bubbling for 30 minutes and still going. I'm using 9% vinegar. They said use...
  4. tcat

    Limestone (sandstone?) treatment

    I've had this pool 14 years and have never sealed the 12" stone wall around about 1/3 of the pool. https://photos.app.goo.gl/TWAfwFmXp4QwZ4cQA Is that something that's recommended? It tends to drop sandstone "dust" on the coping ledge. I splash it off and reddish sand goes into the pool. Do...
  5. tcat

    Pentair CCP320 questions

    Replacing my DE48 with CC320, just came in. Question about the small screen thing at center of cartridge manifold. It has female threads, but it's just sitting on top of the PVC tube up the middle. Should these be connected? The union o-ring rings were separate, I assume they go in the wide...
  6. tcat

    Pentair ccp320

    I just ordered the Pentair 320' cartridge filter. I have their DE 48 and notice the tank lid appears to be the same as the CCP 420. Curious, if 3 years from now when I need to buy a new get of cartridges, can the larger ones be used with the taller lid? ie: is it worth saving the old lid? My...
  7. tcat

    PVC prep

    I will be replumbing for a new cartridge filter and moving my SWG soon and have a few questions. 1. Best way to saw a square end on existing pipes? (Hacksaw?) 2. How to remove white paint? Is 180g sandpaper fine enough? 3. Can fitting be dry fit and come apart? (I have a couple 45's that...
  8. tcat

    2" pipe connections

    I'm getting ready to redo my plumbing to move my SWG from before to after my heater. I've got most figured out, but need to connect a valve (opening facing down), to the heater ( opening facing out). Heater opening about 36" left of valve opening, which sites about 8" back. Do I use 3 90's...
  9. tcat

    Aiper Seagull Pro recall

    https://aiper.com/us/seagullpro-recall
  10. tcat

    Auto-fill plumbing

    This is my auto-fill plumbing, seems to work, but are all the valves really necessary? Thinking an anti siphon is all that's needed. Thinking of replumbing because there's a cast iron fitting off the spigot; everytime water starts, some rust enters the pool. Also, is there an inline filter I...
  11. tcat

    Best place to buy muriatic acid?

    It seems our local Home Depot quit carrying muriatic acid. It doesn't show up on Lowe's site either. Where are you guys buying it? I'm in Austin.
  12. tcat

    Union parts.

    It's there a source that defines union part numbers? I have a couple 2" white unions, with "415-5090" on the nut. I'd like to keep the nut side and buy what it's screwing into. My plumbing is lacking enough straight pipe not to keep the nut side. I'm going to convert my DE filter to a...
  13. tcat

    DE to Cartridge switch

    I have a Pentair 48' DE filter, considering replacing with Pentair CCP240 or 320. It appears connections are in same location, so should be easy. The DE grids are such a PITA! My VS pump runs at 750 & 1850 rpm, so I'm thinking the CCP would be plenty, or would the 320 be a better choice...
  14. tcat

    Crystal Pure system length

    PS. Can someone with this cell measure the "cutout" length of cell + flow switch? Trying to figure out if it's an easy install to replace my Edge-40, or "won't fit" in which case I'll probably just buy a new Edge cell. From edge of flow switch to edge of union. I'm guessing about 20", but...
  15. tcat

    Boric Acid

    I just ordered 35# of Boric Acid to hopefully reduce my MA requirement. My pool is "open" year around, but only heated from March to October. Should I wait until March to add it, or does it really matter? I typically bump up my CYA in March. Pool is at 52 degrees. I run my SWG at it's lowest...
  16. tcat

    Calcium build up

    I'm getting calcium on my cell fairly quickly after cleaning. I envy people who only need to clean every 3 or 4 years! Attached is my latest test results. Ignore the FC, it's high because weather got "colder" and I didn't turn my cell off or down (it's only on 25%). My CH is always 450-500...
  17. tcat

    Portable water softeners

    My CH seems to always be around 500-600. My fill water is around 250 (Austin Texas). My SWG cell seems to love calcium build up, requiring 2 or 3 cleanings per season, killing its life. Would something like this be effective on auto-fill line? This says "16,000 gallons" (which is about my...
  18. tcat

    Circupool Sales?

    I know they have sales on systems all the time, but do they ever put cells on sale? Black Friday maybe? My Edge-40 cell may be coming to an end (only 3 years), so I thought I'd buy a new one as a back up. It's still producing, so I can wait. I'll have low salt blinking one week, and clean...
  19. tcat

    Circupool Edge-40 air bubbles

    I've had this SWG for 3 years. This year I notice a large air bubble trapped on top side of cell (may have always been there, but never noticed). I also get low salt blinking, maybe related. Is there a preferred orientation to help remove air? Mine is horizontal with wide width vertical...
  20. tcat

    Circupool Edge-40

    Curious how well these (or Edge-25) have been holding up over the years. My Edge-40 is 2.5 years old with low salt blinking, but producing plenty of chlorine. I've tried everything recommended by support, and they said I could send it back for "evaluation". No prepaid shipping, no shipping...
  21. tcat

    Black & Decker VS pump

    I'm thinking of buying one of these as a back up. Did you buy from Pool Parts 2 Go? I have a Pentair 1.5 Hp VS, do you think it's with bumping it to 2 Hp? 17k pool, 2" pipes.
  22. tcat

    SWG hookup

    I have a Circupool Edge-40, but this question probably pertains to any. Is it better to control "on" time by wiring to a timer (that's how I have mine, power shuts off and on to the SWG as set). OR, leave it powered on 24/7, and have it active based on pump flow rate (when pump is off, it is...
  23. tcat

    Time resetting Pentair

    I have a 4 year old Pentair EC-342001 SuperFlo VS. Recently I've noticed its clock loses 3 or 4 hours for no reason. I notice it because my SWG said no flow, and sure enough the pump wasn't on. The pump runs from 7am to 6pm. I set the time a few days ago and same happened today. The SWG is...
  24. tcat

    Low Salt LED

    I have a 2 year old Circupool Edge-40 with low salt indicator on. Salt tests to 3600. If I power cycle the unit, it goes off, but it's back on the next day. It's producing, cell has been cleaned. What might cause this?
  25. tcat

    Edge-40 low salt

    All was good a week ago. No led, but salt was down to 3000. I added 2 bags, now 3600. Now the low salt came on. Cell is only 2 year old. Ideas?
  26. tcat

    DE filter

    I've decided it's well worth buying OEM filter grids (or whole assembly) than buying the "cheap" $150 knock offs! My Pentair grids lasted 8-9 years before one developed a hole, so I decided why not but a new set. Think I paid $125 at Amazon 4 years ago. Look just the same, but one developed a...
  27. tcat

    SWG's are awesome!

    Can't believe it's been 2 months since I tested the water! I swim 2-3 times per week, and summer has just flown by. I was really surprised things weren't bad at all. FC is high for the lower CYA level, I guess heat burns stabilizer off (I haven't replaced much water other than evaporation)...
  28. tcat

    Water clarity

    Just curious how clear water should look at night near a light. During the day water looks very clear. At night bottom drains look clear, but near the lights water looks like it's full of dust (or microscopic air bubbles). Normal? My CC is testing close to .5, so there's a bit of something in...
  29. tcat

    DE Filter grids

    Just a FYI. Buy original Pentair replacement grids when they need replacing! I bought an Amazon off brand 4 years ago. 3 have a hole in them already! I was wondering how oak catkin burrs where getting in my SWG cell.... Good thing I saved my old ones that were 12 years old with only one...
  30. tcat

    Leak?

    There is no leaking water around my pump or filter, but if I turn off the pump, I get a gurgling sound from the filter (Pentair DE). I turn the pump back on and I need to relieve the air valve. Only thing I can guess is with pump on the large o-ring seals itself. Maybe unseals when off? Or...