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Additional info This system was installed professionally 26years ago , and this month both the potable solar water tank and collectors have been replaced.Both sensors are new and checked out. The reading was taken at the kitchen faucet and since then a Honeywell thermostatic mixing and...

I'm circulating water to my solar collectors with a pump is rated at 3.1gpm at 1300rpm and the heai is transferred to a 82 solar hot water tank. The temp.coming from the collector is about 210 degrees F.,but the differential controller keeps running all day long even when I'm not home and not...

I live in florida.The MARCH pump is rated at 4.5 GPM and runs all day and shuts off in the evening. You state that panel can heat waterto stagnation temp. and can this be true with water circulating all the time? Thank you for your reply.

I have a new 4x10 solar collector with a t&p valve installed on it and a new 82 gallon solar water heater with its own t&p valve. This is an active system and the collector t&p valve cycles open about every 10 minutes and dumps steaming water to the ground. The tank t&p valve does not cycle. The...