New to pool ownership...help with intelliflo VS pump speeds and operation
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I've been experimenting a bit with changing speeds on the pump to see which works best with my pool (14000 gallons) and SWG, but still would like some clarification. I was told by the company who installed the system multiple options...one of which was to run at low speed 24/7. However I've noticed after start up if I run at low speed (speed 2 which I changed from factory setting 1500 rpm to 1800 rpms) after a full day or so it appears air bubbles start to appear in the pot strainer lid. Once I kick the speed up to speed 4 (3100 rpm) the bubbles dissipate. Is it possible that at the low speeds I'm not drawing enough water to operate the system efficiently? A service tech did address a small suction side leak at pvc coupling that I discovered by running water over suspect area, but bubbles still appear at low speeds. Also hear some water churning a bit in filter head...not sure if this is normal...again only at low speeds...filter pressure is only about 8 psi at 1800 rpms. Any help would be appreciated as I'll continue to tinker.

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Richard's picture
Tech, Pentair
In some cases pumps maybe
Richard's picture
Tech, Pentair
Posted

In some cases pumps maybe required 24 hours, depending on the hydraulics of your pool system, there is usually a minimum rpm for a variable speed, especially if there is an air leak, the water churning in your filter maybe caused by air being injected into the filter, you can simply check the filter by opening the air relief valve while the pump is running, if no water comes out at first, there is air in the filter, if water immediately comes out, the filter is fully primed and should be running in normal conditions.

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Richard's picture
Tech, Pentair
In some cases pumps maybe
Richard's picture
Tech, Pentair
Posted

In some cases pumps maybe required 24 hours, depending on the hydraulics of your pool system, there is usually a minimum rpm for a variable speed, especially if there is an air leak, the water churning in your filter maybe caused by air being injected into the filter, you can simply check the filter by opening the air relief valve while the pump is running, if no water comes out at first, there is air in the filter, if water immediately comes out, the filter is fully primed and should be running in normal conditions.

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Thanks for the advice. I
Posted

Thanks for the advice. I've searched high and low for this air bleeder valve but can't seem to find it on my filter. I have a pentair sand dollar sd80 with 2 inch hybrid valve. Any tips on how to manually bleed air from such filter? I have set a schedule for pump to run at different speeds which has seemed to help with the air situation. However it does still seem prevalent at low speed of 1700 rpm. Seems like my system runs best between 2000 and 2300 rpm

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