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Understood but this puts CSI slightly positive due to high CH. Guess I'll have to live with it until next year as it's getting too warm to drain now.

True. I shoot for pH of 7.5 to 7.8 by adding MA several times a week. It generally drifts to 8.x relatively quickly.

Okay. So keep the CSI in the range I am trying to achieve or should I go to +0.3 ~ -0.3 range and accept the scaling so as to not erode the plaster? I'm wondering if my obsession with being slightly aggressive with CSI is to blame for the relatively high CH level in my pool. I should note that...

I finally checked. The TA of my Fill water is 160ppm. CH is 175ppm out of the hose and 0ppm out of the softener. I'm thinking I'll just manage my CSI for another season then drain and fill next year when it gets even further out of whack. @ajw22 @Newdude Is my desire to prevent scaling by...

It could but I'm the engineering manager and I'll just go ask the operations manager to borrow it for a spell! I work for a local water/sewer district. It's used to pump out water from pipe breaks and we have several. If it comes down to needing the last one, I'm on 24 hour emergency call anyhow...

The one at work is FREE! Of course I'll probably have to douse it with Chlorine!

That'll be a pretty big drain!! Pool math says to drain 71% of my pool volume! I better get the submersible pump from work for this..

Yup. At 7.8 my CSI goes to positive which I am trying to avoid. I think a partial drain is in order. Fortunately I have baking soda and CyA on hand for the refill from my water softener so I have 0 CH when I do it. What's a good CH target? 400ppm?

Just realized I've been on here for a while and never posted this in the "Introduce Yourself Forum"! The house my family bought in SoCal in 1966 had a pool and it was the only one on the block for a few years so we became the place to swim! After we lived there for a few years my dad, who was...

I've been adding Muriatic Acid at the rate of about half a gallon a week to keep the pH down. As you can see above it is a constant battle for me, maybe because the CH has crept up over time in this new pool build filled at the end of 2022. I did post about doing a partial drain a while back but...

Click my link to see latest test results. I've been trying to keep my CSI at or slightly below 0.00 to keep scaling at bay but this has obviously driven down TA, given my CH level. I have no apparent scaling but should I worry more about TA and CH?

Here's an issue I've had probably with the IntelliCenter 2 app and now with the new Pentair Home app so probably not app related.. I have several schedules in the early morning until sunset and evening from sunset to a preset later time depending on weekday evening or weekend evening. I set my...

It's been on internet mode since inception:

I've found issues with this app. First was it not adjusting to my display settings so I couldn't even put in my password without changing the display settings on my iPhone. This makes he app not compliant with the ADA for visually impaired. Next I had to manually force it to sync the...

SoCal Evening

Why has nobody mentioned adjusting CH? EDIT Oops.. Vinyl.

My CSI looks good but CH is high as is salt. I do have to add a gallon on MA a week to drive pH down and keep CSI slightly negative to zero. My fill water has a CH of 240 but if I use water from the softener it is 0.

I got auto updated to 2.017. DST issue remains. Rolling back again.

From the Sky.. We had re-landscaped the front shortly before and it's not full grown in in this aerial. The next fly by should show much more full vegetation and show the huge shade structure on the south deck. Living in So Cal drought tolerant is the way to go. The drains are in the shadow of...

Just realized there's a Trouble Free Pool in this picture!

Neither can I! I suppose I need to spend some more time with it but this weekend I'm digging into building an outdoor kitchen.

Well it was another busy weekend preparing to build the outdoor kitchen but I did manage to take a few more pics of my wiring on the PCB itself. I don't know if they help or not but here they are..

New Planter. You can see some of the lights I'm installing.