Using a Nature 2 system with the BBB method

[PoolDoc]

STX2600 is not a valid model number for a Hayward Super Pump. Possible models are:

SP2600X5 (1/2 HP up rate rate)
SP2605X7 (3/4 HP up rate -- 1/2 HP full rate)
SP2607X10 (1 HP up rate -- 3/4 HP full rate)

[tdkorson]

I got that model number from the pool store where I purchased a replacement impeller a while ago. I've looked physically at the pump, but don't see a model number. Do you know where the model number is stamped, or how to tell which model I have?

[waterbear]

My Pump motor is the 1 HP A.O. Smith 1081 design ST1102 single speed motor
Are the motor and filter sized right for each other?

Looks like I have the 3/4 HP Hayward STX 2600 super pump

STX2600 is not a valid model number for a Hayward Super Pump. Possible models are:

SP2600X5 (1/2 HP up rate rate)
SP2605X7 (3/4 HP up rate -- 1/2 HP full rate)
SP2607X10 (1 HP up rate -- 3/4 HP full rate)

Houston we have a problem. The AOsmith motor is a replacement and it is a FULL RATED 1 hp motor. If your pump wet end says it's a 3/4 hp then your motor is oversized for your wet end. It is VERY oversized for the wet end since the superpump line is all uprated so this that would be a .5 hp wet end.

IF your pump is Model 2610X15 which the the uprated 1.5 hp superpump (equivalent to a 1 hp full rated pump) then the motor is correct for the wet end.

This could explain why your filter is not working properly. How long ago was the pump motor change out?

[PoolDoc]

Waterbear, I'm emailing you right now.

[tdkorson]

1. The motor was replaced last July by a place that rewinds motors. The original got hit by lightning.

2. I'm still not sure how to find the exact model number of my superpump.

[PoolDoc]

Actually, at this point, what matters is what impeller and diffuser they installed. You can take a Super Pump case, and by changing out the impeller, diffuser and motor, make it in to any other Super Pump.

Do you happen to have the invoice from that work? It might show the part numbers for the impeller and diffuser, and if so, will answer the question definitively. As it happens, I doubt that the pump is the problem. I'm discussing the issue with Waterbear.

Meanwhile, you DEFINITELY need to check out your filter interior. So get out your sockets and ratchet and open the thing!

[tdkorson]

I'll get the part number for the impeller from the pool place Monday morning. I got a couple of unions at the store today. I'll cut the plumbing and dive into the filter interior tomorrow.

[PoolDoc]

You shouldn't have to cut *anything* to open the filter!

[tdkorson]

How do I get the top off without cutting the pvc pipes? They don't have a union. My intent was to cut the pipes and install a union.

Is it possible to loosen the top clamps and scoot the base out from under the controls and plumbing on top??