Notices

Want to install a wash down pump

Old 02-11-2019, 06:02 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Feb 2019
Posts: 1
Default Want to install a wash down pump

i have a 19í open aluminum jet sled, and I want to install a wash down pump in it this year. Have a few questions.

first, does anyone have a recommendation for make/model for the pump? Reviews Iíve seen online are generally negative.

second, Iíve been told to put the through hull in the transom, near the drain plug. And to use a plastic through hull fitting. Does that seem right?

third, should I put a seacock on the through hull? If so how is that done, since the through hull hitting looks like it is designed to take a plastic hose not another component?

what type of plastic hose to run between through hull and pump?

anything else I need or should be aware of?

thanks much
natenez is offline  
Old 02-11-2019, 07:11 PM
  #2  
THT Sponsor
THT sponsor
 
Join Date: May 2013
Location: Isle of Palms, SC
Posts: 389
Default

Originally Posted by natenez View Post
i have a 19í open aluminum jet sled, and I want to install a wash down pump in it this year. Have a few questions.

first, does anyone have a recommendation for make/model for the pump? Reviews Iíve seen online are generally negative.

second, Iíve been told to put the through hull in the transom, near the drain plug. And to use a plastic through hull fitting. Does that seem right?

third, should I put a seacock on the through hull? If so how is that done, since the through hull hitting looks like it is designed to take a plastic hose not another component?

what type of plastic hose to run between through hull and pump?

anything else I need or should be aware of?

thanks much
I can't recommend one pump over another.
Plastic fitting because if you use a metal one on an aluminum hull, it may cause galvanic corrosion.
You should have a sea cock to shut off any thru hull penetration below the waterline. If it were my boat, I'd buy the whole thru hull and valve setup from Forespar.
Search the threads here to learn about not mixing different thread types. Thru hulls have straight threads so the flange nut can travel the entire length. Ball haves have tapered threads. The don't mix. You can install a thread to barb fitting in the valve and attach a good quality hose to it and mount the pump up higher. This type of pump will self prime. Ask the person at West marine to recommend the hose. Get all stainless steel clamps. Some have steel screws that rust. If a magnet sticks to them, then they're not the proper stainless alloy.
Piece of cake.

Island Marine Group is offline  
Old 02-12-2019, 06:38 AM
  #3  
Senior Member
 
Join Date: May 2006
Location: Fort Pierce,FL
Posts: 4,879
Default

I dont see how mounting in transom will pick up any water when you are on plane. Pickup should be through bottom of boat. Watch location doesnt send turbulence to your transducer.
barrell is online now  
Old 02-12-2019, 06:50 AM
  #4  
Senior Member
 
Join Date: Jan 2011
Posts: 776
Default

I agree with the suggestion about location by barrell, but I would not know if an aluminum hull is conducive to a hole being punched through it. Sounds scary.

Besides, without scuppers, your washdown will flood the boat with no water exit in sight. I would stick to a hose from the dock.
Reachport is offline  
Old 02-12-2019, 12:05 PM
  #5  
Member
 
Join Date: Jun 2018
Posts: 38
Default



Holes in wood, fiberglass or composite vessels are more likely to cause problems then an aluminum hull/transom. For wash down and live well inlets I prefer welding in aluminum tubing, brace welded and extended above the water line. Makes a permanent solution and is safe. The pic attached is an example from another forumó not my boat.

For a jet boat Iíd do a transom or bow/bottom intake depending on where you will mount the pump and outlet. Both will be out of the water while on step if that matters.

Last edited by Roger rodbolt; 02-12-2019 at 12:11 PM. Reason: Wrong link posted.
Roger rodbolt is offline  
Old 02-12-2019, 12:36 PM
  #6  
Admirals Club Admiral's Club Member
 
Join Date: Jan 2007
Posts: 10,916
Default

Originally Posted by natenez View Post
i have a 19í open aluminum jet sled, and I want to install a wash down pump in it this year. Have a few questions.

first, does anyone have a recommendation for make/model for the pump? Reviews Iíve seen online are generally negative.

second, Iíve been told to put the through hull in the transom, near the drain plug. And to use a plastic through hull fitting. Does that seem right?

third, should I put a seacock on the through hull? If so how is that done, since the through hull hitting looks like it is designed to take a plastic hose not another component?

what type of plastic hose to run between through hull and pump?

anything else I need or should be aware of?

thanks much
you want saltwater or freshwater or both ?
mystery is online now  
Old 02-12-2019, 01:06 PM
  #7  
Senior Member
 
Join Date: Mar 2009
Location: Western WA
Posts: 1,941
Default

Drill hole in the bottom, weld in aluminum pickup with threaded end (inside the boat). You can actually weld a 1/2 bead just aft of the pickup hole to help force water into the intake while yupoir are running. As said, make sure it’s not in a place that will ,easy with your transducer. Mount seacock to the threads. Putting a hole in the bottom without a seacock is a terrible idea. Mount pump to seacock.
wdlfbio is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Thread Tools
Search this Thread