Recent content by thrystan

I would go with 6 gauge 4 conductor so you will have enough capacity for future upgrades you might make. However at a minimum have the builder install large enough conduit that you can install 4 6 gauge wires in the future even if you install less capacity now. Conduit is pretty cheap so you can...

I used one of those for a while, the biggest issue I had was that I had it plumbed into the suction side of the pool plumbing and the chlorine was being sucked through the little pump. I tried several things to prevent that issue and settled on the slightly more expensive pump I linked earlier...

How are you planning on regulating how long the pump will run?

I think I'm using PVC tubing for the chlorine. But make sure you Google the chemical compatibility for the tubing you want to use. Silicone definitely does not work for acid, I don't remember if it works with chlorine. It appears that the pump you are looking at uses 5mm tubing, the one I use...

I've been running this pump for 3 years with no problems, once I got the right tubing. Don't use the tubing that comes with it, it's too short and not compatible with chlorine or acid and tubing joins too close to the pump aren't a good thing. Amazon.com I'm actually running 2 of these, one for...

You should definitely ask on GitHub, but I suspect the problem is that the original pi just doesn't have enough memory to complete the build. I had similar problems running it on a pi zero.

I disconnected it from the rest of the plumbing and use it as a location to put a water level sensor.

I have two of them for acid and chlorine, each one is in one of the small boxes at the bottom.

I've been running this pump for chlorine for over 2 years now with no problems. Amazon.com I figured out how long it takes to pump 1 oz of chlorine and have a program that pumps 1 oz at a time however many times I need to get the dose I need. I split up the dose and put some in every hour but...

I just noticed your talking about a hot tub not a pool, which might make things a bit easier since the amount of time needed to mix the chlorine will be much lower. For my 30,000 gallon pool it takes a while for added chlorine to affect the ORP reading.

I use the second method to add chlorine. I set a given amount to add each day and have a program that adds part of the amount every hour if the pump is running. I have an ORP sensor, but I just use it as an indicator to tell me if I'm way out of whack. If the ORP reading is way too high I will...

If those white wires really are hot and not neutral, you should put a wrap of black electrical tape around them near where they connect to the screw terminals. That is an indicator that even though the wire is white it's a hot wire not a neutral.

Also, try to avoid having all of that bare wire exposed. Trim the stripped portion of the wire so that it is just long enough to insert fully under the screw terminal but no longer.

In the Sacramento CA area, my 30k pool uses around 40 ounces a day in the summer. So my 15 gallon tank lasts around 6 weeks at the height of summer. At the moment I'm using around half that, and in the winter I'm only using around 10 ounces per day. So really the answer is it depends. That said...