Can I use a SWG in a system with 2 speed pumb and solar

[mdhwoods]

Considering putting in a Hayward Aqua Rite 25000 for my 10000 gallon pool. I have a 2 speed pump that runs on low until the solar control calls for heat. Once that happens it will turn on hi and run until it reaches temp. Will this effect the operation of the swg? Flow rate on high is about 60gpm and about 10gpm on low. Is the swg effected by flow or just run time? If it is just run time then my question is mute.

thanks in advance.

 

[JasonLion]

SWGs have a minimum flow rate, as long as you are above that you will be fine. Most of the time two speed pumps on low are above the required flow rate for the SWG, but now and then, depending on details of your plumbing, there isn't quite enough flow and they will only work on high. With a WFDS-26 you should be just fine unless your plumbing is amazingly convoluted.

 

[jblizzle]

Also, curious about how you came up with your flow rates. It is not easy to determine as it is a function of your plumbing and equipment.

Generally I seem to have read that the low speed is roughly half the flow rate of the high speed given the same water path.

 

[mdhwoods]

Was going from memory at work. You are correct, my low is 30gpm and my hi is 60. I have an inline flow meter that I read. Not sure why I thought it was 10.