Hello Mark & Jennifer,

here is what I used:
http://nikimat.com/pump_out_hose.html
The hose will suck from the bottom of your tank.

Never a fun experience, but gets better with time!

Sincerely, Alexandre

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On Sun, 11/5/17, mgarver@... [amelyachtowners]
Subject: [Amel Yacht Owners] Head Pump Out
To: amelyachtowners@...
Date: Sunday, November 5, 2017, 10:14 AM


 









Having recently purchased Super Maramu
#105, we encountered a minor issue during our first pump out
and that issue being that the standard pump out adapters do
not simply screw on to the SM deck fittings, so of course I
used the non threaded push in attachment, which again was a
bit of an issue due to the diameter of the pump out at the
deck. Simply wrapping some rubber gloves around the
attachment, and holding it an a very specific position
allowed me to finally get the tanks pumped out. My questions
is this, "Is there a better method"? I have
actually considered getting an adapter made at a machine
shop that would allow us to simply use the standard pump out
attachments at the various marinas we will be at in the US.
Once Marina recommended changing the deck fittings for
something standard here, to which I said no, in fear of the
"Keeper of all things Amel", Bill R. haunting me
during every pump out.
Any previous experienced
fixes or suggestions to this situation? I apologize if this
was already a topic, but I did search and didn't see
it.
Thanks!
Mark and Jennifer
GarverS/V It's
GoodAmel Super Maramu #105

 

Mark,

I had the same issues pumping out initially until I found Alex from Nikimat's page. I used that design to make what my wife and I affectionately call the "poop straw". We used this fitting from Defender:
Deck Fill Diameter: 1-5/8 Inch
Actual Thread Diameter: 1-1/4 Inch MPT
Threads / Inch: 11.5
Model #: 310343503

I simply screwed the fitting into 1.5" ID Sanitation Hose without any sealant or adhesive. We store it in a garbage bag in the port side deep locker.

This enabled us to pump out. However, we still struggled to get a good seal between the pump nozzle and the fitting on the "poop straw" mostly because the fitting did not sit flush with the deck due to the length of the hose. I decided to inspect our tank design and found that the bottom of our holding tanks are only about 17 inches below the deck. The drain hose from the bottom of the holding tank to the ball valve is obviously much further below the deck but getting the "poop straw" down in that hole was not easy and made the fitting not sit perpendicular to the deck. I decided to cut the length of the "poop straw" to approximately 17 inches below the foam seal on the fitting. I also made sure to cut the bottom on a bit of an angle. The fitting now sits flush with the deck and I can simply press the pump into the fitting to get a good seal and can pump out with ease. It doesn't empty the tank 100% but it does get the vast majority out and it now takes us no time and the process is significantly cleaner too. I will add a new album called "Holding Tank Pump Out" with some pictures of our "poop straw" to the photos section.

Hope this helps.

Mark
SM #440 Cara
Deale, MD USA