If you use one you need to be acutely aware of the dangers that it can create and how to properly protect yourself and you fish. In most case, the probe can create more harm than good (if certain steps are not taken).
One day I will put the bulkhead/siphon calculator and some of the others back up. They were all flash or .net component based. I need to rebuild them in php; The math in the water change calculator is really straight forward, but the idea came from the RK article (years back) By Randy Holmes-Farley.
More than likely NO it will not work.
It takes 1 btu to raise or lower 1 pound of water 1F
A dorm fridge can move maybe 150 BTU/h at best. Even with the door closed, it cycles on and off numerous times a day keeping itself cold, using over 30% of its cooling capacity just to maintain a 35F...
I don’t really see the benefit. I understand you are trying to alternate contact time in favor of volume, but most UVs are not large enough to be effective at either even when they are super clean. I would opt for long contact time and rely on mechanical filtration, or opt for no UV at all.
And to think in the last 5 years I only have maybe 100 posts ;)
I looked at one point years ago and the only folks with more posts were moderators... I hope that has changed!
Still in the hobby, just busy.
I would suggest submerging the siphon standpipe and/or reducing the diameter at the discharge end. You can reduce down a pipe size or use a valve. 1.5” at 15’ of head can move a tremendous amount of water.
Ideally, the adjustment would be at the sump end with this much head, but you can likely...
If course it will ;)
So a few notes:
If the flow volume is low and and the siphon standpipe is a very large diameter, then you are correct, the area between the valve and the sump may not product a true siphon. In this case submerging the end of the siphon (thus preventing atmospheric...
My two cents:
In most cases - multiple baffles serve no purpose. A single "over" baffle creates in intake compartment and a return compartment.
More often than not, the multi-baffle setups end up wasting space and the baffles are so close together that bubbles are whisked right through...
I think gate valves are a waste of money... I have never had an issue dialing the system in with a ball valve. That said, in 10 years I can count on one hand the number of times I have had to adjust the system.