Re: thick coatings
On the 60 gal. it is all from one end. So far so good. The 20 gal had from each side a row of smaller holes totaling an area the same as the 1/2" pump output. It worked great. The one drawback to the smaller holes was any trash circulating was more likely to stop them up.
Watching floating ashes off a cigarette to see flow in the tank, both tanks flow good with very few slow places in the tank.
Yes I can pull the chiller and I set the unions so I could bypass the chiller straight back to the tank. With the weather as warm as it has been, I've been running it all the time. I'll have to wait until the weather changes to see if it is needed then. Since I run my tank colder than most, I most likely will still run it. The one thing I see that would have been better, is to have ball valves on both ends of the hoses.
SS
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