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    How to treat Black Algae on steps while draining?

    I'm starting to see some black algae on my steps, I"m also draining about 80% of my pool to lower CH. Is there anything I can do to fight the algae while the steps are dry and the pool is draining?
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    Loss of suction

    I have an old in ground pool, probably built in the 50's. I installed a Pentair whisperflo 2 speed pump last year and everything went pretty smooth. I also have a 48 sq. ft. DE filter with new grids. All of the original lines appear to be 1 1/2". Everything was running normal last week, I...
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    pentair dual speed pump wired OK?

    There's no wiring diagram in the manual and only a small schematic on the motor itself. I don't want to burn up my motor so I've attached a couple of pictures in hopes of getting some feed back on the wiring. It's a 230v motor and I'm running the old electrical feed for a few weeks until I...
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    Easytouch install - DIY? Yes or No

    Is the easytouch load center very hard to install and setup for a 2 speed whisperflo pump and a intellichlor SWG? I'm trying to decide if I want to get the easytouch or a less functional (and less $) intermatic time clock to handle the 2 speed pump and booster pump. Thanks for your help.
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    Pump size

    Can I down size to a 1 hp pump? I have a 19600 to 22500 gallon pool, approx. 50 years old, no spa, no fountain. Looks like 1 1/2" plumbing, one skimmer, one floor drain and two jets. The longest plumbing run is 50'. The pump is 10' from the pool at the same level as the water. I replaced...