What Causes Pool Pumps To Blow Their Bearings?

SuperiorBuilt

Any ideas what maybe causing my pool pump to blow their bearings? I have bad luck with my above groud pool pumps. It seems like every 1 to 1 1/2 years the bearing in the pool pump blow. Any Suggestions. It a 15' x 30' oval above gound pool with a sand filter.
Thanks

mdshunk

Are you replacing the pump and motor as an assembly each time? Or just the pump head? I fear that you might have an alignment issue or bad bearings in the old half that's tearing up your new pump heads.

POOLMANinCT

agreed....
ps putting chems in skimmer? destroying shaft seal... shaft leak then bearings....

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......Less with the jaw & More with the paw.....

dirt diggler

low alk and low ph

bad for motors


and like ray says

SuperiorBuilt

I replace as a unit

POOLMANinCT

chems in skimmer?
if so, chems in skimmer & not running pump 24/7, is the same as a pump housing primed w acid.

ray

__________________
......Less with the jaw & More with the paw.....

Poolman

Yep.

SuperiorBuilt

No chemicals in the filter. Pump is usually run about 3 hours a day.
I have an automatic pool cleaner so i am not hooking up the pool vacuum to it either.
Any ideas?

POOLMANinCT

your pool is acidic

__________________
......Less with the jaw & More with the paw.....

SuperiorBuilt

How would i find out if pool is acidic?
Water is test during the season usually with no problems.
What would be the best replacement pump for this pool? It seems the 1 hp are enough to push the water around the pool. any recommendations would be greatly appreciated. I think the reason why I am getting blowing the pumps is because I have the pump is about a foot away from the pool and the kids are splashing the pool water on it when they play in the pool. This is causing corrision problem with the pool pump.
Thanks for your help
Steve

dirt diggler

you need water to be tested regularly - buy your own test kit


if acidic - get sodium bicarbonate

POOLMANinCT

a one horse, is serious overkill. thanks for mentioning. I doubt your above ground has a filter large enough, not to creat some serious backpressure.
as far as splashing, non issue. its water/weather proof equipment.

ray

__________________
......Less with the jaw & More with the paw.....

SuperiorBuilt

Curious , what would hapen if i installed a 2 or 3 HP pool pump instead of the 1 HP pump in a 15' x 30' above ground pool with the existing sand filter? 1 hp just does not seen to be enough .
any suggestions?
Thanks for your input

mdshunk

A giant tsunami wave would flow over your pool when you fired it up, and it would be empty then.

POOLMANinCT

you would blow your shaft seal... get minimal flow in pool....
though, your flow will improve after tank expels about 150lbs of sand into pool.....

__________________
......Less with the jaw & More with the paw.....