Pentair Whisperflo pump help

ernest787

Member
Feb 13, 2021
22
texas
We just completed our first full year with a pool and learned a lot along the way. That said, last year the weather never got cold enough to really worry about freezing so we didn't anything much different during the winter months

This year, we are in the midst of a week long cold where the temps may not get above freezing and for a few days may not get out of the teens.

This morning I woke up and the top of my pool was frozen. I knew this was not good and immediately broke up the ice on the surface. It was a very thin layer. I then realized the pool returns were not pushing any water out. I went over to the pump and saw that it was not running and inside basket appeared frozen.

We called a local pool shop and they stated this unfortunately is common in our area since most are not used to dealing with freezing weather and pools. They recommended we take hot water and pour into the pump and all over the piping around the pipe to try and defrost of it. I spent a good hour outside doing this and was able to get the pump running again.

Here is my issue - I cannot get the pump to move any water to the return jets. I did stick my hand in the water to feel if the skimmers had any suction and they do not. The basket on my pump is not really priming either. When I turn it on the pump comes on and the water moves some in the basket but is not pumping the way it should. If i turn the filter to backwash or winterize, the pump water pressure in the pump appears normal, but the moment I move it back to filter it returns to not having much pressure.

I'm not certain if this has to do with letting this freeze and now the pipes are frozen underground, or is there something else that could be causing this that I am missing. Everything was working perfectly fine until this morning but I'm lost at this point.

Any help would be greatly appreciated.
 
787,

I would assume your filter or the plumbing into and out of your filter is frozen.

Jim R.

I took the filter apart and there was a little ice at the top but not much. I put it back together and still have the same issue. I was hoping maybe it was frozen in there and that would explain it.

I ran the backwash and the skimmers were sucking the water in. I tried it on filter again and still no suction from the skimmers in that mode and no returns working.

I went ahead and dropped the water below the skimmer line. Sun is out right now for a bit but it's going to be below freezing the rest of the week. Not sure if there is anything else I can do or I just have to leave it now and pray there is no major damage
 
787,

If it worked in backwash, then it sounds like your return line is frozen.. Could be anywhere between the filter and where the return line(s) go back to your pool.

Do you have a salt cell??? or Tab feeder, or anything else in the return path?? That would be the first place to look..

Show us some pics of your equipment pad.

Thanks,

Jim R.
 
787,

If it worked in backwash, then it sounds like your return line is frozen.. Could be anywhere between the filter and where the return line(s) go back to your pool.

Do you have a salt cell??? or Tab feeder, or anything else in the return path?? That would be the first place to look..

Show us some pics of your equipment pad.

Thanks,

Jim R.

There is the equipment.

I went ahead and drained the pump and filter. I think you're right and the return pipe is frozen.

Not sure there is anything I'm going to be able to do for it at this point. But open to suggestions
 
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