Thru-hulls, pumps

[DTrain]

Since I just invested pile into a re-power, I have a renewed long-term commitment to this boat, so I'm giving it a hard look for things that need attention. Luckily it's been well cared for so the list is short.

I've read here about cheap failure-prone plastic thru-hull fittings in some (most?) Parkers. My boat's only thru-hull that's truly below the waterline is the washdown intake, but that's bronze w/ integrated seacock, so that's not an issue (I've never heard of these outright failing). I guess the starboard outlet for the forward bilge pump is what's in question. It's _just_ above waterline but would take in water under certain conditions at sea if it failed, but it seems like it wouldn't be that big of a deal. It is indeed plastic but seems sound. I guess my long-winded question is, is it worth it to replace this proactively? I've only read here of one of these failing.

I also discovered that the aft pump isn't working, so I'm probably going to replace both. Haven't bought a pump in decades. Anything to stay away from or head toward?

 

[DaleH]

Johnson brand pumps will outlast anything you can buy. They sell a 1500gph version with electronic-sensing field effect switching (no moving parts). This pump is also sold under the Marpac name by Surplus Unlimited.

I'd put one of them out one side and a 2200gph Johnson "storm" pump, using 1-1/2" hose (on a manual switch) out the other side. Use SS thru-hulls.

 

[miky2884]

If you have plastic through hull fittings on your 2320 like I have on mine GET RID OF THEM!! I had one fail on me this year while out on the boat, it was the forward bilge fitting luckily it sits about 3 inches above the waterline so it was no real emergency, however after that one failed I said I was going to change them all this spring, well I took the rest of them off last week and all are in bad shape, the worst being the one that sits below the water line that serves the purpose of the drain for the indeck hatch. All I had to do was put a little pressure on the back of the fitting to try and remove the hose and the fitting crumbled in my hand :shock: this would have sank the boat in less then 10 minutes if it had let go in the water. Im going all stainless! I know you were talking about your intake through hulls but check these as well!

Below are two pictures of the one that came from the forward bilge.

 

[Brent]

Maybe the fitting is Marelon which is superior to plastic or PVC

http://www.forespar.com/what-is-marelon.shtml

m2cw
if it is an issue, then upgrade

 

[DaleH]

Maybe the fitting is Marelon which is superior to plastic or PVC

In he right application, Marelon is even superior to naval bronze!

 

[Megabyte]

Replaced all of my bilge pump through-hull fittings back about 2004.
I used chrome over bronze for mine, and added a second aft (backup) bilge pump at the same time.

I upgraded the forward pump to an 800 gph and put a pair of Rule 2000 gph pumps aft.
All of the pumps have WaterWitch 101 electronic switches, rather than float switches.

If you are replacing and upgrading, make sure that all of your discharge hoses have a weather loop (even the forward line).
A weather loop will keep rough seas from entering the discharge outlet and adding sea water to your bilge.

 

[warthog5]

I guess my long-winded question is, is it worth it to replace this proactively?

AbsoFreakinglutly.

Check here: 316 series stainless
http://www.replacementboatparts.com/sta ... ppers.aspx

 

[Megabyte]

Bobby... Do you have a photo of a proper weather loop?
I can't locate a shot of mine on this computer.

 

[warthog5]

No....I looked before.......But I'll go out there and take one.



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[Shannonigans]

the worst being the one that sits below the water line that serves the purpose of the drain for the indeck hatch. All I had to do was put a little pressure on the back of the fitting to try and remove the hose and the fitting crumbled in my hand :shock: this would have sank the boat in less then 10 minutes if it had let go in the water.

Mike. . ... .my 2320 is a 1999 so I have basically the same set up as you. I really don't care for the hatch drain set up. .. ...it's almost a straight (horizontal) run with no loop in it. Pretty sure the only thing that stops water from coming back into the hatch is the 90 fitting! If I were to put a loop in it . . .. .I don't think the water would drain. I think it would just back up onto the deck. . . .or in the hatch. I thought about plugging the hole and draining it in the bilge like the other hatch drain does. . ..but I'm not a fan of any unnecessary water in the bilge. .. ... .. .. . .. .....any thoughts??





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[saltyfish]

The thru-stern that drains the live-well on the 21SE is also near the water-line, have only had my boat out twice and forgot to survey the arrangement. Has anyone changed out the thru-stern fitting on the 21 SE, possibly adding a sea-cock or other valve? I realize there is little pressure on the system, but it seems the ideal would be a valve you could shut off. Apologies if any terminology was incorrect.

thanks

Bryce

 

[DTrain]

Thanks guys. I think I'll be replacing. The forward bilge discharge is going to be fun to get to...

I don't have an engine bracket on my boat so my transom is probably set up differently, but I have 2 scuppers at the waterline that are connected to the drains in the main cockpit. With the new motor they are going to be underwater at dock. Anyone ever replaced these?

 

[Megabyte]

Thanks guys. I think I'll be replacing. The forward bilge discharge is going to be fun to get to...

My boat has a deck hatch right above that drain.
Easy to get to.

 

[warthog5]

 

[miky2884]

My through hull for the deck hatch drain wasnt a 90 it was straight the new one will be a 90.

I access my forward bilge fitting just like warthog but i dont have the pieplate i just get to it through the bigger hatch in the V berth

 

[Megabyte]

Also notice the forward bilge hose weather loop.
That hose makes a 360 degree rotation to keep wave action from entering your forward bilge.

The weather loops for my bilge pumps aft also make a 360.