No. I didn’t check MD with the main pump. I will check it and let you know. I am positive that valve is in the right position but the line might be clogged.
Suction Line for a second (feature) pump
- Thread starter sam34786
- Start date
- May 3, 2007
- 18,073
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
If it works with the main pump, then maybe it is the new pump that is the problem. But if it has the same problem, then there is probably something wrong with that line.
MDs are often abandoned because they either leak or have significant clogs that are not easy to clear.
MDs are often abandoned because they either leak or have significant clogs that are not easy to clear.
You are right. The problem is not in the line with Main Drain. MD is connected to main pump and it’s working fine.
The problem is with Check Valve going into the feature pump or the pump by itself.
The problem is with Check Valve going into the feature pump or the pump by itself.
- May 3, 2007
- 18,073
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
You can take apart both the valves in that line to see if something is hung up.
But when you checked the other pump, you made sure the skimmer and cleaner line were off, correct.
But when you checked the other pump, you made sure the skimmer and cleaner line were off, correct.
There is one 2-way valve and another check valve and I think the issue would be one of them. What’s the reason for installing check value in front of the feature pump.
Yes correct all 3 are off SPA Drain, cleaner and skimmer. I am sure that it’s working just on MD with no issues.
You are awesome and helping me a lot. Thanks for all your help
. Can you also suggest me the best filter to purchase to handle the all water features.
- May 3, 2007
- 18,073
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
If the flow rate of the system is lower than the filter max rating, then it may ok. We need to get that loop running with a valid filter pressure before I can make a recommendation on the filter.
If you want to replace the filter without all the information, doubling the size should be sufficient but it could be overkill as well.
If you want to replace the filter without all the information, doubling the size should be sufficient but it could be overkill as well.
- May 3, 2007
- 18,073
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
It is to prevent the main pump from sucking water through the feature pump if the valves are set open to both pumps. The main pump should have a check valve as well if it was originally set up that way.
If/when you separate the two pumps, the check valve should not be necessary.
What would be the Filter model that you recommend just for the water features?
Pentair recommended "Use a 20-micron cartridge filter to supply clean, filtered water to the Laminar. Do not use a DE or sand filter"
- May 3, 2007
- 18,073
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
I would wait until we get that loop working before choosing a filter. I need the current filter pressure to get an accurate flow rate and then size a filter appropriately. CC200 might be a good size but again, I would wait.
Shall I remove the "T" from the Main Drain and connect directly to the Feature pump? The pool is full of water and want to make sure that it won't flood.
- May 3, 2007
- 18,073
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Have you found the issue? If not, I would leave things as they are so that we can troubleshoot better.
Why would the pool flood? The feature pump draws from the pool and returns to the pool so it is net zero. Or are you expecting rain? But even that really doesn't matter.
A couple of follow up questions:
When the pump is trying to prime, do you see any water coming in the inlet in the pump basket?
When the pump is trying to prime, is the cartridge filter pressure changing at all or is it flat line at the minimum PSI?
Why would the pool flood? The feature pump draws from the pool and returns to the pool so it is net zero. Or are you expecting rain? But even that really doesn't matter.
A couple of follow up questions:
When the pump is trying to prime, do you see any water coming in the inlet in the pump basket?
When the pump is trying to prime, is the cartridge filter pressure changing at all or is it flat line at the minimum PSI?
Let me find out this information and get back to you. I am not an expert and learning this from your guidance.
Pool technician said the check valve is bad and he told me to get the new flapper. Shall I order the new check valve with the flow meter so that we know the amount of water flowing. Can you please recommend the check valve with flow meter.
- May 3, 2007
- 18,073
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
The FlowVis is the only one that I know of. They have a retrofit kit but it only works for Jandy valves.
There are other ways to determine flow rate which is why I asked about the filter pressure and the distance from pool pump. But it is up to you.
There are other ways to determine flow rate which is why I asked about the filter pressure and the distance from pool pump. But it is up to you.
- May 3, 2007
- 18,073
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Forgot to mention that you can remove the flapper, remove the pin in the hinge, just to test the pump and priming.
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Please find more pics
