Anyone have a Grundfos SQ flex on solar with timer for irrigation??

Ake · July 2020

I have an SQ Flex off two solar panels and a CU200 with a ground level holding tank with float switch.I want to have timed irrigation. I do not have an elevated tank so only pressure for irrigation is directly pumped water. I think I can set up pressure tank and then run timed irrigation off that. Or try to figure out a way to add a timer to the system elsewhere. Has anyone set a system like this up? What did you do?

The Grundfos has terrible instructions and I can't get through to customer service to ask questions. If anyone has detailed set up diagrams for combining a pressure tank with the solar powered SQ Flex with CU200 I would greatly appreciate it!!!

mike95490 · July 2020

here's "a" answer. it might not be THE answer, but it should work

Use a regular irrigation timer. I went through a couple battery powered units with DC valve$$ that only lasted a year and half. Finally trenched and added 120VAC and a regular timer with 8 stations. All the valves work ( for 4 years now ) and everything is happy.

Plumb the water pump into a couple 80 gallon pressure tanks (each tank holds 40 gal of air, 40 of water) and set your pressure switch to whatever your irrigation system needs (40lb ? ) The tanks will allow the pump to shut off and cycle back on as you use water and if you dont use water at night, the system will still have pressure in the AM.

Dave Angelini · July 2020

Where did you buy this? The store here sells this equipment and has installers like me who are in business to make this gear work correctly.

Ake · August 2020

Thanks Mike!

Anyone have a Grundfos SQ flex on solar with timer for irrigation??

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