Which valve do I use on the Jacuzzi Magnum 1500 to drain lines

the pump is pumping and circulating hot water into jacuzzi, it will get hot. I think it is ok

This is a lot of pump for a fish pond. You should use the safe-guards as you would find in a pool, two drain's separated by 3 or so feet and/or a couple skimmers. You dont want the fish getting pulled into the drains/skimmers. It will also be a lot of $ to run the pump compared to a smaller 'fish pond' pump ... of course your pond may be much larger than the average garden variety.

Personally, I dont think this is a good idea for a small pond. Tell me more about your pond.

Thanks for your question @ FixYa.com

Jacuzzi (Carvin) Magnum, Force & Plus pump parts are hard to find.
Here is a link to our site which has a parts explosion/diagram for those pumps.
Jacuzzi Magnum, Magnum Plus, and Magnum Force Pumps

Is the equipment to heat and filter the hot tub separate from the pool equipment or do both bodies of water share a common heater and filter pump? In most cases they share a pump and heater with valves that direct the flow of water depending on how the pool owner wants to use the pools.

The first thing you need to determine then is if the equipment is working properly. Is there flow of water to and from the spa? If so, is the heater burner kicking on? If it is running, is it running properly with sufficient gas pressure, 3-4" tall bright blue flames and stays on continuously during the heating cycle for the spa?

What is 'very quickly' for the time to heat the water? In other words, if everything appears to be operating normally but the water is not warming fast enough or at all how much time is elapsing before deciding the heater is not working?

How old is this equipment and how much experience do you have with this pool tech or the company they are from?

The coupling between the pump and motor may not be tight and therefore may be sucking air and not allowing the strainer basket to fill with water.

it may be that you have a obstruction in the suction line. if you have a valve turn it so it pulls from main drain and skimmer at the same time 50%-50%

COULD BE A BEARING GOING BAD.. HAVE IT SERVICED ASAP! PARTS ARE HARD TO FIND 4 THESE AND A LITTLE NOISE CAN TURN INTO A BIG $$$ PROBLEM QUICK.. LOOK FOR YOUR LOCAL POOL PUMP REPAIR GUY USE YOUR ZIP CODE IN YOUR SEARCH HOPE I WAS OF HELP.. VOTE JAY PPRG

you probably have a check valve (back flow preventer) on the line that supplies water to the spa when the pool is filtering as normal. Your check valve may have some debris in it or the seal inside may have failed allowing the water to drain into the pool when the system is off. You should see a valve on the return line that splits off from the pool return line on your system. There are several different check valves on the market, some have a clear lid that you can inspect without taking it apart. Some of them cannot be taken apart. Your challenge will be to find the check valve, then try to check to see it debris may be holding it partly open or it the rubber seal inside is damaged or missing. I hope this helps.

You need a 201 seal for the pump. Most electric motor shops that work on pumps and of course pool store carry these. If you are unfamiliar with how to change the seal, the charges to have it done are usually low. We charge $15 - $30 depending on how much of the pump is brought in and therefore remains to be taken apart to replace the seal. The seal is about a $5 item.

If trying yourself, you will need to completely disassemble the pump, lock the motor shaft at the rear of the unit, spin off the impeller, and replace both halfs of the seal.

With the Jacuzzi Magnum pool pumps, low pressure is going to likely be cause by one of the issues below. Try these troubleshooting tips.

1.Pump not primed

2.Leakage of air into suction system

3.Impeller clogged

4.Valve in suction or discharge line partly closed or suction or discharge line partly plugged or too small. 5.Plugged basket in skimmer or hair in lint strainer.

6.Dirty filter.