Ok, so we had our pool renovated and they finished it last Thursday. We had all new coping stones installed, and all new wall tiles. It's a Gunite Pool, that holds 24,000 Gallons. Friday we had swim ready pool water trucked in. So it was anti-climatic going from excitement of having our pool done, filled and ready to switch on the filter and pump. Went to fire it up and nothing. My wife's dad is really good with electrical so he came out Saturday and it took us a while to isolate the where the short was and it turns out the pump motor was the culprit.
So here I am deciding if I want to just find a replacement motor or buy a new pump and motor combo. My pump and the deceased motor are old, and I mean really old as you can see from the pictures below. All I've been able to tell about the pump is that it is a Pentair Purex. The only label I found lists the Model # as AM-4 and a serial number of 824 Purex Pool Products Division. The motor's label was more helpful I was able to find that a Century B121 motor would be a suitable replacement motor. However given the age of both the pump and the motor, I'm starting to wonder if it would be better to just replace this with a pump/motor combo. But if I do this, I admit I'm a little lost in knowing what I need. I see terms like GPM (gallons per min), head foot measurements, maximum flow rates etc.
Here's what I do know:
Piping (at leas above ground) is 1 1/2" PVC
Filter is a Pentair Tagelus TA-60A/60D sand filter with a designed flow rate of 60 GPM with a max pressure of 50 PSI
The pump motor is a Century Centurion switchless motor rated at 3/4 HP 3450 RPM that can be wired as either a 115 or a 230. Ours was wired for 115.
Our pool has 1 skimmer and 2 return jets.
Pool size is 18' x 32' with a 9' deep end, and a 4' shallow, that holds around 24,000 Gal.
I'm not sure what all to look for in a new pump/motor combo. I'm leaning towards replacing both so they are both new. I know that I want to get a setup that will run under the filter's max flow rate of 60GPM. But when shopping most pump motor combos are listed just by HP. Question is, is the HP the motor runs at the main factor I should consider? If so, I think I should stick with a 3/4 HP combo. I can take a photo of the plumbing setup we have running to and from the pump and filter. Would it be better to just replace the motor or am I right in leaning towards all new?
Along with replacing the pump motor or combo, is we have to rebuild all the wire connections and boxes. Things were not wired well. Below is a picture of the power setup. The switch at the top right is for the pool light, the box to the bottom right below the light switch is for a non-GFI double outlet, then the box at the bottom left had a combo switch and GFI single outlet that turned the pump on or off. The switch for the pump is where the wires come in from the garage, then travels to the non-gif, then to the light switch, then to the large box that we are guessing is a junction box (we can't find a way to open it. and then feeds through the galvanized piping which runs into the ground and I assume to the light. When we removed the switch we found that the back of the switch was burned/melted and the so were the wires coming out of it. Thankful we didn't have a fire. They also didn't properly weatherproof all the boxes... We'll clean all that up with new proper wiring.
So here I am deciding if I want to just find a replacement motor or buy a new pump and motor combo. My pump and the deceased motor are old, and I mean really old as you can see from the pictures below. All I've been able to tell about the pump is that it is a Pentair Purex. The only label I found lists the Model # as AM-4 and a serial number of 824 Purex Pool Products Division. The motor's label was more helpful I was able to find that a Century B121 motor would be a suitable replacement motor. However given the age of both the pump and the motor, I'm starting to wonder if it would be better to just replace this with a pump/motor combo. But if I do this, I admit I'm a little lost in knowing what I need. I see terms like GPM (gallons per min), head foot measurements, maximum flow rates etc.
Here's what I do know:
Piping (at leas above ground) is 1 1/2" PVC
Filter is a Pentair Tagelus TA-60A/60D sand filter with a designed flow rate of 60 GPM with a max pressure of 50 PSI
The pump motor is a Century Centurion switchless motor rated at 3/4 HP 3450 RPM that can be wired as either a 115 or a 230. Ours was wired for 115.
Our pool has 1 skimmer and 2 return jets.
Pool size is 18' x 32' with a 9' deep end, and a 4' shallow, that holds around 24,000 Gal.
I'm not sure what all to look for in a new pump/motor combo. I'm leaning towards replacing both so they are both new. I know that I want to get a setup that will run under the filter's max flow rate of 60GPM. But when shopping most pump motor combos are listed just by HP. Question is, is the HP the motor runs at the main factor I should consider? If so, I think I should stick with a 3/4 HP combo. I can take a photo of the plumbing setup we have running to and from the pump and filter. Would it be better to just replace the motor or am I right in leaning towards all new?
Along with replacing the pump motor or combo, is we have to rebuild all the wire connections and boxes. Things were not wired well. Below is a picture of the power setup. The switch at the top right is for the pool light, the box to the bottom right below the light switch is for a non-GFI double outlet, then the box at the bottom left had a combo switch and GFI single outlet that turned the pump on or off. The switch for the pump is where the wires come in from the garage, then travels to the non-gif, then to the light switch, then to the large box that we are guessing is a junction box (we can't find a way to open it. and then feeds through the galvanized piping which runs into the ground and I assume to the light. When we removed the switch we found that the back of the switch was burned/melted and the so were the wires coming out of it. Thankful we didn't have a fire. They also didn't properly weatherproof all the boxes... We'll clean all that up with new proper wiring.
