Recent content by Vegas Mike

Ogdento, Thanks for your reply! Should have clicked on your Saturation Region blog before proceeding. Yes, noticed I lifted that pad -- that was the second attempt at fix when the Menu button and Select right button still misbehaved. When reinstalling, shifted the button slightly to bridge...

In case others review this inactive post, just tried today to replace the buttons on my 520657 EasyTouch8 control panel. Nope. I do have some solder skills, but apparently inadequate. Bought the buttons from DigiKey, PTS645SM95SMTR92-LFS, $0.46 each. Used very fine cutter to snip the old...

Another update in case anyone searches for Pentair acid pump. Last time I replaced the peristaltic tube, I could not remove the roller assembly. Decided to wait for cool weather when acid demand drops (because less make-up water is added I think.) Had to use a soldering iron to melt the Lexan...

Regarding diluting concentrated acid, "Do as you oughta, add acid to water!" Issue is concentrated acid heats rapidly with small amounts water, or slowly added water. Think of hot oil and water. Seems you have done fine with your method Dirk, but a caution for others. And I am seriously...

Discovered what I did wrong. The black poly tubing end at the acid tank top had a half-inch split (pictured), which was enough to reduce the acid flow by almost half. Cut off the split and reconnected, and seems acid back to normal, now 1.6mL/second pump time. To make sure changing check valves...

Thank you all for being so generous with your time. Especially JoyfulNoise – apparently, I have forgotten much of my chemistry training. I now see that using softened water will reduce the total pool water use because pool refills would be needed much less frequently than my current three-year...

In case anyone accesses this old thread, an update. The "debris" that plugged the Pentair 522513Z check valve was actually the rubber seal inside the valve that the ball seats against. Finally disassembled a failed unit. The rubber breaks down, and the ball gets stuck, blocking acid flow...

In Las Vegas, we have over 200ppm calcium and magnesium in tap water. A softener substitutes two atoms of sodium for every atom of calcium or magnesium. So the sodium output would be over 400ppm. (No, you can't taste the salt -- far below your taste threshold. Please look up how an...

Guess I'll need to construct an electrolysis experiment using my pool water to prove to myself the bubbles are H2 and O2. Obviously, chlorine is also generated, but I assert it reacts almost instantly and does not appear downstream. For my syringe to explode as it did in my demo, must have...

Have seen statements on TFP that the gas bubbles generated by the SWCG are hydrogen and chlorine. I believe chlorine reacts too quickly with water for that to be true. Although chlorine gas is stated as only slightly water soluble, that is irrelevant because it rapidly reacts with moisture to...

Blew a 2-year-old, 400W incandescent in my spa and figured I would just go to LED. Installed a 12W, 120V, daylight-white LED (Kollniun brand) that the description said was a Spa/Pool bulb. Replaced the fixture gasket even though it was only two years old. Worked perfectly with great...