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With CYA of 90, you need to raise your TC to about 10-12. Pool School - Chlorine / CYA Chart

Thanks for the feedback 1stand2rd.

Well, that's why I'm asking the question; to remove doubt. Just looking for anyone that might be in the know on this topic. Given the nature of the test it seems reasonable to think that the its the same chemical being used to produce turbidity in the water that will obfuscate the black dot at...

Hello, I have the Pentair-Rainbow reagent kit with the sliding test tube. Is the Taylor R-0013 reagent compatible with the Pentair sliding test tube? Pentair uses different part numbers than Taylor and it isn't clear (to me at least) if there is any different in the reagents. I can buy...

The pool is on the left side of that pic. Yeah... if the bottom drains are plumbed into the skimmers only, I'm having a hard time seeing how I could rely on them for draining. It also makes me question the point of them in the first place. Maybe there would be some value with circulation but...

I see what you are saying. It does look that way but I cant say's I've noticed until now. I'll inspect that closer this evening.

Okay, here is the bottom of my skimmer. It looks dirty but I think its stained from being dirty before; nothing wipes off... I do now see where maybe a float valve could be inserted. I think I also might need an o-ring. If anyone here can point me to the right stuff, I'll go get it!

Okay, I've looked up what a skimmer float valve is and I dont have one. I dont think my skimmers are designed to accommodate one either but I will verify; not sure I could just put one in unless it was designed to work with a float valve... Also, thanks to the helpful information provided, I...

I see nothing except for the two holes in the bottom of the skimmer. I can only feel suction from one of the holes as I'm sure you'd expect. Interesting... I hadn't thought of the bottom drains being plumbed into the skimmer as well; I can see how that might work! If that's the case, any...

I think the answer is one. In this pic, you can see the pump with one pipe coming into the filter basket from the ground. The one valve will either send water through the filter on the right which returns to the pool via jets or send it to the left which returns via a single outlet that you...

I do have a main drain and a valve that diverts to an outlet that is for something like a Polaris instead of the normal return jets. I still can feel suction in the skimmers though and I never "feel" the main drains. So, still think it's a sump pump I'll need?

Hello, I was reading another similar post about high CYA and the OP posted a pic that showed water well below the skimmers though the pump was running. Is that safe to do or should I turn the pool pump off and drop in a sump pump? My post on that thread: "Curious.... I see your water level...

Curious.... I see your water level well below your skimmers and the pump is obviously on since water is pouring out of the return jets. Is that okay to do? I'd really like to know because all I've read is to not let the water level below the skimmers. I'm a newbie to pools too; well I've got...

Thanks moderator for splitting my question into a new thread! :p And thanks to Texas Splash for the reply. (I added a signature about my pool... Your pool looks awesome!) I have an in-ground pool and want to keep it open all winter. I understand that I dont have to run the pump as long...

Split by moderator from HERE. Please ask questions in your own thread. jblizzle Hey folks... New to the site and new to pools! Looking for info on how to keep the pool open during the winter. (pump run times, chemical monitoring etc...)