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With a CYA of 40 (35 gets rounded up to 40), your FC level is 16. See the SLAM part of the chart. Each time you test, are you adding enough liquid chlorine to get up to SLAM level again?

Normally, we don't check the pH during a SLAM as an FC > 10 invalidates the pH test. But since you already know the dose of MA to lower the pH to the recommended range, you could add it tomorrow. Just don't test the pH until after the SLAM is complete and the FC drops below 10. You will need...

With our high CH water in the PHX area, you will need to do a full drain/refill every year or two. That's is why many of us have our water softener plumbed to our autofill. You refill the empty pool with straight tap water (unsoftened) then use softened water for the autofill (evaporation and...

How much liquid chlorine do you have on hand?

Add about 40 oz of 31.45% muriatic acid to lower pH to mid to low 7's. Use the chart and select the option. Add enough liquid chlorine to get to the SLAM level for your CYA. Check the FC at least 3 times daily (but no more than every 2 hours) and replenish to SLAM level.

With pump running... Add 5-7 ppm of liquid chlorine - use to determine the amount 15 minutes after adding liquid chlorine..... Lower pH to about 7.5-7.6 using muriatic acid (liquid) - use to determine the amount Leave pool pump running for at least 15-20 minutes after adding any chemical It...

Interesting - post a pic of your skimmer basket showing the built-in mesh netting. How do you clean the skimmer basket and netting?

The longer you wait to properly address this issue, the worse it will get and the more it will cost. Even if you were to put the property up for sle, a prospective buyer would want this properly addressed before closing or the issue may just scare possible buyer away. Their thought may be that...

Post a pic or two of your skimmer basket. What brand/model number is your skimmer. I'm with Marty @mknauss - Filter Flosser works great. Combine with hairnets in the skimmer basket and I get very little actul debris in the cartridge filter. Lots of dirt, but very little debris.

Maybe call Discount Salt Pool and ask. Let us know what they say.

No idea - I saw the "Core" and "55" in your signature. Guessing the Core "Control" 55 would use the same SWG cell as the Core 55. Doesn't make much sense breaking from their cell numbering.

Looks good! Use the CircuPool Core 55 in Chlorine output there is listed at 2.3 lbs/day

What SWG do you have? Fill out your signature with pool, pool equipment (include manufacturers and model numbers) and test kit info. This assists us in providing you help without needing to ask each time for this important information. https://www.troublefreepool.com/account/signature

Please don't use poolcalculator.com as it isn't up to date with TFP methods and last I heard it isn't maintained any longer. Use - and link to your forum account.

Post a full set of current test results from on of the recommended test kits. FC CC pH TA CH CYA Salt Water temperature We don't offer advice based on pool store or on non dropped based testing.

Click the round dot with the white center to turn SLAM on.

You have a TF-100 Salt test kit. Pay zero attention to the pool store tests - post a full set of current test results from you own test kit. FC CC pH TA CH CYA Salt Water temperature Be sure you are taking the TA and CH tests to their end points. See the extended test kit instructions...

Until today, it looks like your last CH test from 7 months ago was 100. You reported CH of 80 today. Your signature shows you have a gas heater. You need to increase your CH to at least 200. TA of '45' gets rounded up to 50. Your FC is way too low. I'd suggest an - if you pass, increase your...

Try using 4 drops of reagent instead of 5. This sometimes help to make the color match more discernable - sometimes not.

Great - their customer service has always been top notch.

Use a plastic or wood probe to clean the scale from the cell. A 20 inch drain hair snake works well. You can get one for around $3...

@erinkalogris3 Welcome to TFP! :wave: Trichlor tablets (stabilized tablets) add CYA CalHypo tablets (unstabilized tablets) add calcuim Either will build up in the pool and require draining water to remove. Do NOT mix either together in the same container or floater. Do not use the same floater...

Check with Polytech Pools in LAS or Inyopools.

We recommend a SWG to be rated for at least 2 times the pool volume. The rating listed for a cell is if run at 100% 24/7. Stick with the T-15 cell for your 20k gallon pool.

Googling - pleatco pj160 alternative filter - turns up quite a few alternatives. No idea as to there quality or if they will ship to Canada.

Are you in contact with them by phone? My understanding is you will get the best price by phone.

Let me put it this way - for those of use who have the stirrer.... we wouldn't be without it, and if ours broke today we'd have another one on the way immediately. Call TFTestkits in the morning (they are on east coast time) and see if they shipped your kit yet. If not, they can probably add it.

In PHX, a CH of 250 is fine. It will increase on its own by 1 to 1.5 times your fill water CH in a year. TA of 70-ish will slow your pH rise. Let the pH sit around 7.8 - 8.0 and your CSI will be in the 0.00 to -0.30 range, given your other current parameters. You want CSI slightly negative to...

Long term solution is to install a SWG and also use softened water for the autofill. For the month or so in winter, when the SWG won't produce due to low water temps, I use a gallon or two of liquid chlorine in total.

Verify you are using the R-0013 reagent for the CYA test. What is the reagent number of the bottle with the yellow cap next to your CYA test mixing bottle?