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Mine is the Hayward T-CELL-15. Since it is set by percentage, it is relative to operating time. It operates in 2-hr cycles. If set to 50%, it's on for the first hour out of every 2-hr period. So will mine generate more chlorine due to high salt ppm? Is it proportional? All things being...

For a given operating percentage, will a SWG generator put out more Cl if the salt level is 3200ppm compared to 2800ppm? I had ratcheted my % up to 60% in recent weeks as my salt got down to 2700-2800ppm. I was consistently getting 4.5 - 5.0ppm FC. I added two 40-lb bags of salt, and my...

Good suggestion, thanks.

Here's a follow-up FYI. I got the CYA standard from TF Testkits. Tested dead-on 50ppm. I assume you are supposed to treat the standard as the pool water when performing the test procedure? In other words, fill the CYA test vial to the bottom of the label with the standard, then fill to the...

I didn't start near 0. The PS reported around 30, but my TF-100 has shown my level to be 40-50ppm the entire time I've been adding the 10 lbs of CYA. It's almost like I'm testing the CYA standard! LOL. Yeah, I definitely plan to buy some of the standard and check my testing. I assume you...

I guess I've stumped the experts?? LOL. Well, I have to admit that this one is pretty hard to explain -- other than the pool store guy telling me that CYA can be very hard to get up to higher levels. No idea why that is and I've never come across anything else saying that, but it's the only...

It's 10 lbs if you look carefully at my notes. The first 8 lbs was in the form of two 4-lb granular bottles from Blue Dolphin. After those didn't do anything and Jason mentioned something about a benign batch of CYA, I bought the third 4-lb granular bottle from The Pool Store. I've added 2...

Thanks for the help. No autofill system. I just use the hose to add water occasionally when necessary. I've had to do that maybe 3 times this season as the water gets to the bottom of the skimmer window. I'll add 3-5" to get it back up to the middle of the skimmer window. I'm using the CYA...

Regardless of how much CYA I add, I simply cannot get the CYA level to move up. It's been at 40-50 for weeks, despite me adding alot of CYA. I always add it slowly, and I've added most of it through a sock in the skimmer. Typically 1 lb, dissolve, then 2 lbs, dissolve, etc. I don't know how...

This might sound paranoid, but it might help me to be more prepared when this eventually happens. I'm sure my main pump/motor will go out one day and probably when I least expect it. What type of place do you immediately turn to to see if it can be fixed? Or do you immediately just buy a new...

Thanks for the replies. I'll answer all questions below. No auto water leveler, and no backwashing b/c I have a cartridge filter. I'm pretty certain that my pool is 25k-gal or close. That's from the local company who built the pool. Dosage rate: well, it gave a rate to use for start-up...

With my new TF-100 test kit, I had been measuring CYA at 40-50ppm. I actually feel pretty confident in my ability to perform this test. I'll perform it 2-3 times in a row and always get the same exact result. I'm also getting consistent results from day to day and week to week. So, I wanted...

You guys are great. I really appreciate the advice. The jet was at an angle, so I moved it to the straight-back position. More importantly, I checked the wheels, and sure enough, about HALF of the teeth of the wheel on the single-wheel-side were completely gone. No wonder it was turning too...

Thanks guys, great advice. I'll look carefully at the drive teeth. I do know that the tires themselves were replaced late last summer. Pusher jet / thrust jet, same thing? I've seen the small 1-2" tube that points out of the lower-back of the unit. Is that it? I think it's pointed at an...

I have a freeform pool that is somewhat kidney-shaped. It is pretty standard with a 4' shallow end that tapers gradually down to about 9' in the deep end. My 280 cleans the heck out of the deep end, but it doesn't want to spend much time in the shallow end. I'm afraid that it has alot to do...

PaulR, just to follow up, I brushed the pool and waited a couple of more days, and the CH is now reading 240 as we expected. Thanks.

I love my new TF-100 kit, but it's missing one thing that is useful for me -- the acid demand test. I continue to struggle to detect the ever-so-subtle differences in shades of purple in the 7.6-8.0 range (where my pH always stays), and the acid demand test is an extra tool that helps me to...

I like that answer. :) Thanks.

Here's something I just found in my Aqua Logic owner's manual. This should make you feel better. Cell Type Selection The Cell Type Menu appears after “Display Salt/Minerals” in the Chlorinator Configuration Menu. The options are T-CELL-5 or T-CELL-15 (default). Make the proper selection...

I have an Aqua Logic system, and mine occasionally does the "Inspect Cell" thing too. Here's what the owner's manual says. On my unit, I think you can press the <+> to clear the message. I'm not sure about the strange salt reading. Mine was reading 2900/3000 recently, so I added a bag of...

I bought my new house/pool last Aug, and when I closed down the pool in the fall, I discovered major scaling on the inside of the salt cell. I've gotten things under control with the water balance and cleaning up the cell, but now that's got me wondering about scaling inside the heater. I see...

You'll be more than fine. T-CELL-15 is the biggest one they make. I have a 15 and my pool is about 25k gals. Works fine and seems to keep up with no problem. I ran my FC higher than necessary last summer as I was figuring things out with my new pool, and it only required about 40-50% along...

Thanks guys. I do use the Pool Calc often. It's great. That's where I started from and how I knew that I could add the full 15 lbs and then re-check. I just happened to quote those numbers b/c that's what the label on the back of the container said. It's hard to argue with the label on a...

With my new TF-100 test kit, I've been measuring 180-190 CH. I'm wanting to target around 300ppm, so I bought 15 lbs of calcium chloride. According to the label, 4 lbs in 10k gals equals +40ppm, so that would mean that 15 lbs in 25k gals should equal +60ppm. I added 5 lbs last Fri morning, 5...

I've attached the spreadsheet I use for my pool test results log, in case anyone finds it helpful. I've recently added columns for LSI and CSI. Thanks to Jason and chem geek for helping me get the CSI formulas straight. ph

I'm actually in the same boat. My first CYA result with my new TF-100 kit showed 40ppm CYA (4/23). I tested again on 4/25, and I got 55ppm. Tested again on 4/29 and got 55ppm. I figured I just messed up on my first test on 4/23. I added 2 lbs of CYA this past Saturday 5/1. I tested again...

I have few more questions about my new TF-100 kit: 1) In the instructions, some tests say to mix, others say to swirl. Can I just swirl for all tests, or does "mix" really mean to put the top on and thoroughly shake/mix for that particular step? 2) If I know roughly what my TA or CH will...

Great point. Thank you for clarifying. I should have been more specific and said that I prefer to target my "TargetFC" instead of my "MinFC" based on my specific CYA (target 70-80), but you inferred correctly that I didn't really factor this in when talking about 1-2ppm FC being low. Thanks...