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Moved from here... https://www.troublefreepool.com/posts/1735352/bookmark There is no longer enough flow to power my Great White crawler thing. I used to get it to run when the vacuum guage reads 12 in Hg (adjusted by partly closing the floor drain valve). But now at that setting the flow...

My history of measurements is in my TFP profile. Suddenly after several days of rain, my CSI is down to -0.52 and I need guidance on which factor to correct first. I have had to drain about 1.5 inches of water out of the pool, and add 10 lbs of salt. None of the numbers look unusual except...

I have a Taylor K-2006 test kit which includes the FAS-DPD test with the tube of powder R-0870 and a tiny spoon for measuring it. I am on my second such tube of powder. I notice that the little sccop never really empties even though I tap it over the comparator tube. After a while whatever is...

I am gradually adjusting my new SWG to maintain a constant FC. I figured that if the FC, TA, and CYA are constant over 24 hours then I am adding Chlorine as fast as the Sun etc is eating it, so I set about to calculate how much that was. (Log is in my profile) The cell is rated at 1.45 pounds...

To clean behind the light, do I just take the end of the vacuum hose off the Kreepy Krawly and run it around in there, then wash the filter? How does algae survive in darkness?

I have been playing with the various goal ranges suggested by the Poolmath web page and comparing its suggestions with what it says in my SWG manual. I am wondering about the difference between the "Traditional Pool" and "Troublefree Pool" settings. The "Traditional" goals pretty match what is...

My pool has an Intelliflow pump which has its own internal timer. Currently it runs 24 hours/day at 1000 RPM (about 65 Watts) and speeds up when the solar panels call for it. The idea was, run for longer hours at a lower speed so it does the same amount of filtering but is quiet about it. The...

Our Digital Nano SWG has been a lot of trouble. From time to time it will start complaining "Low amps. Cell?" and checking the readings shows either 0 Volts 0.2 Amps, or 32 volts 0.2 Amps. The correct reading would be 17v, 5A. Of course with the low amps, it is not producing Chlorine...

My pool light is the usual sort of installation, about 10 inches in diameter and secured with a single screw at the top. The trouble is that all of the weight of the fixture is back behind the lens, and the whole thing is supported by the plastic ring around the lens, so it swings forward...

After 5 years of operation, I replaced the cell and cable on my Digial Nano. It was getting constant "Low volts" warnings and not putting out any Chlorine. Multiple washings had no permanent effect, and the lady at the pool store said that these things do have a limited lifetime. Ok. (But I...

I have a Pentair intelliflow pump and also have it set to run 24 hours per day at a low speed (750 RPM) that keeps the SWG happy. When the rooftop solar system decides that it is worthwhile turning on, it commands the pump to a higher speed, currently set to about 2300 RPM and then it movies...