We are a solar thermal installation and repair company in Santa Fe called Golden Sun Solar. We have used the Laing D5 Solar/090B and it is a great pump. This pump is referred to by the Laing Co. as the "strong" pump. It is very reliable, and if you get it with the upgraded pump body, it gives you very good bells and whistles.

We have never had to do service on one of these pumps, although changing the power head would be very easy if you had to.

They work very well with 30 watt PV panels.

best wishes,

Frank Kilmer

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