I'm having issues with what looks like calcium/scale buildup in my hot tub. I believe my gas heater has calcium build up inside as well. Are there any products that I can add to my hot tub that may help the build up in the heater? Thanks
Scale/calcium build up products?
- Thread starter New pump Guy
- Start date
- Jun 1, 2018
- 14,309
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
You can work on getting your csi slightly negative.
www.troublefreepool.com
Is this a standalone hot tub?
What are your most recent test results?
Fc
Cc
Ph
Ta
Ch
Cya
Salt
Water temp
Calcium Scaling
Calcium scale on your pool is something we all want to avoid. With some elbow grease and a pumice stone for pools we can help you remove this eyesore.
www.troublefreepool.com
What are your most recent test results?
Fc
Cc
Ph
Ta
Ch
Cya
Salt
Water temp
This is a spa connected to my pool. Ill check water chemistry again on Monday. I'll report back. Thanks
I do have calcium ring around spa, it's decently thick. My heater has an issue that sounds like rocks being tossed around inside the heater, it only lasts a few seconds at a time. Tech said it's scale built up and breaking off.
Perhaps, it could also be the heater over heating. Does this noise happen on start up, on shut down of say the pump or at any specific time you have noticed?
As David said, it's much more likely an issue with your thermal regulator or bypass.
Water boils in the manifold and makes a racket like a garbage disposal. This won't improve on its own.
The only version of your tech being right, would be if calcium has locked your thermal regulator in place. In which case you're better off removing the T-reg and cleaning it manually.
It happens after the heater has been running for about 20 minutes, it then cycles on and off prior to reaching temp
I am waiting on a quote to replace bypass and thermal regulator. Any idea if these are hard to replace? Expensive to swap? Thanks
I am waiting on a quote to replace bypass and thermal regulator. Any idea if these are hard to replace? Expensive to swap? Thanks
Regulator is fairly easy. Also easy to test yourself.
Bypass is less straightforward. It requires removing multiple sensors and the entire manifold. Plus specific details on removing and reinstalling said parts along with the bypass. The item itself is very basic and simple. Just a hassle to get to.
We could walk your through it. It's not overly technical. Just time consuming.
Its a little odd to happen when the pump has good water flow and the heater has been running for a while. Sorry more questions - Is the heater or pump new? Is the filter clean?
Heater is roughly 10 years old, filters cleaned in march. Changing out the pressure gauge and cleaning them again this weekend if rain cools down
If cleaning doesn't fix this issue, could you remove the media and run without for an hour or so and see if this resolves the problem? The symptom could indicate insufficient flow through the heater.