Recent content by mmeyer

It’s worth a try. I don’t see how it could hurt. Thanks for the suggestion!

Brilliant! I hadn't thought about that. I can certainly take it up quite a bit. Great idea!!

Agree with all you said. I also think there's some copper in the flakes which is what has me worried. I'll flush the heat exchanger, adjust pH and lower CH. Thanks!

The pump does have variable speed. Maybe I need to run it a few more hours every day. I'll lower the pH that should take me to a better CSI at higher temps.

Allen: That was very helpful. The black scales bubbled away with muriatic acid in seconds. I guess I simply have a scaling problem. The calcium likely formed calcium carbonate which when heated changes color. Ultimately, this makes the heat exchanger less efficient and perhaps will damage...

That is a great idea. I'll do it tonight!

JoyfulNoise: thank you for taking the time to explain that!!! I must have seen it mentioned as a way of creating black scale. My calcium hardness levels were at 600 for a while and thought it might be the reason for the black scaling. I am not adding any oxalate or oxalic acid. Any ideas on the...

I want to provide a little follow up. I did perform an Ahhsome purge in the hope the scaling was biofilm. However, I was mistaken in that the material is more like sand in consistency. In the photo, you can see what it looks like. It comes straight from jets (i.e. spa heater). If I...

It's Seattle city water. Pretty much snow melt. Not much in the way of minerals or even calcium.

That's a great suggestion and easy enough to do. I'll get started on that and hope for the best!

The material is more soft than hard. It sinks to bottom of spa but is stirred up easily. It doesn't leave any stain. I'm not sure about minerals in the water but is certainly possible. I use Seattle City water which is pretty good but I have added pool salt in the past. I was also wondering...

Marty: I can definitely capture the flakes. I even brought them into my local pool service but they didn't have a clue. I was wondering if there was a chemistry lab that could figure this out, but I didn't know where to start. Newdude: I was hoping the for the same thing. I just turned on...

I could really use some help understanding the problem I'm having. I have been unable to solve this puzzle. I have a 18,000 gallon in ground pool and a connected 1000 gallon spa that was built in 2010. I use a SWG system to chlorinate. I live in Seattle and temperatures are around 40F in the...

No doubt you're right. I'm just curious if I've diagnosed the scaling correctly and instituting the correct remedy. It's my first pool and I'm sure I made mistakes along the way. I'll aim for better water health.