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boiler fluid quality testing and strainer recommendations
I built my house 4 yrs ago and my plumbing contractor convinced me to allow him NOT to install a strainer in the hydronic system. His explanation at the time was they just cause unnecessary calls due to plugging. . . Based on the idea that he MAY be right being he does this all the time, I went with his suggestion. Just the same, it makes little sense to me being that contaminants can concentration and cause pumping problems, even with centrifugal pumps. Regardless, it is what it is.
I sampled the fluid, about 100 ml and found the Ph is about 8.1, but there is some sediment, whitish on the bottom. I found it took about 20 or 30 minutes for the entrained bubbles to bubble off. Figured I got this from the high pressure spurt from the system entraining air into my sample. sample color is light pink and at 50% concentration. I tested with my own refractometer. This is what it was originally, too.
I was looking for other experts point of view and what YOU do as normal in the installation and service of strainers in hydronic systems.
System: Wall hanging 55K Btu/Hr hot water boiler with a side arm hot water heater. 3 pumps: One for main water circulation in the secondary loop, one for primary loop(about 10 ft long to heat fluid in secondary directly) and one for the hot water loop.
Thanks for your assistance!