Question about Hayward 1.5 Hp Northstar High Performance Pump

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Pump stopped woking when I turned it off to backflush

The pump stopped working when I turned it off to backflush - When I tried to turn it on it sounded like a buzzer at a basketball game.

It did feel hot to the touch - maybe something did get caught inside while backflushing

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  • 110 Answers

You have got stuff in your impella.
Take pump away from pipes and 'elec' power lines - empty skimmer filter inside pump - turn over and remove all 'stuff' from inside skimmer filter section.

If you can - turn impella using knife or screwdriver see if it runs smooth and silent.

Posted on Jul 07, 2009


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Posted on Jan 02, 2017


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Proper way to backflush a Rancilio Silvia.

Rancilio does not recommend backflushing the Silvia. Sometimes we have to.
First remove the brew head screen. Clean the brew head screen and reinstall. The proper way to back flush is to use a blind basket. Place some Cafiza, or Joe Glow (espresso machine detergent, a level teaspoon) in the blind basket. Insert blind basket in the portafilter and insert the portafilter in the brew head. With the machine warm, turn on the brew switch for about 4 seconds. If the pump starts to get quieter, turn the pump off. Wait about 1 minute, and repeat.
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Never let the pump get quite when running the pump, while back flushing. This can damage the pump.

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The tank pressure is at 60

I don't have that particular brand, but it is not good that the PSI is that high. Backflush for at least 3 cycles of 60 seconds each.

example: Turn off pump, move to Backflush turn on pump for 60 seconds. Turn off pump, switch to rinse, turn on pump, run til water runs clear.

Repeat 3 cycles. If the PSI still doesn't lower, you may have broken laterals in the bottom of the sand and will need replaced.

Hope this helps. Good luck!

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Water dispenser wont shut off

Something from the filter went into the dispensor valve and is holding it open. You can try to backflush it with a can of air by disconnecting the filter pushing open the valve while holding the can straw tightly while discharging it. You could also backflush it with water.

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