Rear PnP bag drains all the time!!n

buffaxis · **Joined:** Wed May 11, 2016 5:45 pm **Posts:** 65

These are new bags no leaks.. etc

I know there has been posts on this. Looking for a solution. The boat was pre plumed all anti siphon valves are in the boat..

I have to run the pump to keep the bag full .. I have heard of people plugging the side vents?

How would i stop the water from draining or syphoning out the bottom drain.

Its driving me nuts!!!

steveA20 · **Posted:** Sat Jun 16, 2018 11:22 am

buffaxis wrote:

These are new bags no leaks.. etc

I know there has been posts on this. Looking for a solution. The boat was pre plumed all anti siphon valves are in the boat..

I have to run the pump to keep the bag full .. I have heard of people plugging the side vents?

How would i stop the water from draining or syphoning out the bottom drain.

Its driving me nuts!!!

Both bags?

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buffaxis · **Joined:** Wed May 11, 2016 5:45 pm **Posts:** 65

no just the right. fills up great. then 15 minutes later.. empty.. well right when you look at the back of the boat.

steveA20 · **Posted:** Sat Jun 16, 2018 6:53 pm

buffaxis wrote:

no just the right. fills up great. then 15 minutes later.. empty.. well right when you look at the back of the boat.

Double check your anti siphon loop/valve, when I bought my 16 A20 the starboard side rear bag would drain slowly because during the build they mounted the anti siphon valve to high and the breather cap was pushed up against the top back bench frame so it couldn't suck any air to not siphon back out. I had to unscrew it and drop it down about 1/4". If that looks good then un thread the cap and blow through it to check for blockage.

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buffaxis · **Joined:** Wed May 11, 2016 5:45 pm **Posts:** 65

will do that now. they really didn't do a great job with my hoses.. they were all kinked etc..this may solve it.

thanks

buffaxis · **Joined:** Wed May 11, 2016 5:45 pm **Posts:** 65

steveA20 wrote:

buffaxis wrote:

no just the right. fills up great. then 15 minutes later.. empty.. well right when you look at the back of the boat.

Double check your anti siphon loop/valve, when I bought my 16 A20 the starboard side rear bag would drain slowly because during the build they mounted the anti siphon valve to high and the breather cap was pushed up against the top back bench frame so it couldn't suck any air to not siphon back out. I had to unscrew it and drop it down about 1/4". If that looks good then un thread the cap and blow through it to check for blockage.

Sent from my SM-G955U using Tapatalk

I checked my siphon/ anti.... valves and they were both screwed shut i am assuming they should be open to perform there function.?

steveA20 · **Posted:** Mon Jun 18, 2018 12:22 pm

buffaxis wrote:

steveA20 wrote:

buffaxis wrote:

no just the right. fills up great. then 15 minutes later.. empty.. well right when you look at the back of the boat.

Double check your anti siphon loop/valve, when I bought my 16 A20 the starboard side rear bag would drain slowly because during the build they mounted the anti siphon valve to high and the breather cap was pushed up against the top back bench frame so it couldn't suck any air to not siphon back out. I had to unscrew it and drop it down about 1/4". If that looks good then un thread the cap and blow through it to check for blockage.

Sent from my SM-G955U using Tapatalk

I checked my siphon/ anti.... valves and they were both screwed shut i am assuming they should be open to perform there function.?

If they can't suck any air they will siphon. While filling the little black diagram will push up so they don't leak and then drop back down to allow air in after u shut the pumps off.

Sent from my SM-G955U using Tapatalk

boardjnky4 · **Joined:** Thu Dec 05, 2013 2:22 pm **Posts:** 437

Frankly, you might just be better off replacing the siphon loops with check valves.

Bryan1 · **Joined:** Thu Mar 30, 2017 8:48 am **Posts:** 26

I checked my siphon/ anti.... valves and they were both screwed shut i am assuming they should be open to perform there function.?[/quote]

I just talked with a tech rep from Malibu yesterday and asked about the caps and he said they should be just snugged tight for them to properly function.

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Rear PnP bag drains all the time!!n

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