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AC raw water pump impeller replacement and source?

  • Thread starter Thread starter Eddieclemons
  • Start date Start date
  • Replies Replies 33
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The swimming pool pumps sound ok. But I wonder if they are rated for marine use viz ignition source or for a wet bilge installation. I suspect not, hence, swimming pool rating.

I know of at least three boats running the swimming pool pumps that have passed multiple annual inspections by the USCG. All of them are diesel and not gas.
 
You make one. Not difficult.
But this one is so dainty...and cork?! I don't recall ever seeing anything but rubber gaskets on strainers.

Perko or Groco?
The synthetic or cork gaskets are readily available, usually on the rack at West Marine.
Close the cock and take the cover to the store if your not sure of the model number or size.

For the tru hardened, I always keep a sheet of various gasket material in the shop and press (tap out) my own gaskets for strainers.

I used to make some with those flat rubber sheets from Goodyear. But with young kids now, I just grab everything off the shelf and keep on movin'. Before long, they'll be off to college and I'll return to craftsmanship.

I hope Marine Supply has 'em, because West Marine makes me feel like a victim.
 
You can cut them out of rubber sheet quicker than you can drive to the store.
 
Any body know where you can get the red plastic strainer pictured . I have two , can’t find any more . Supposedly they have been impregnated with a biocide . The stay amazingly clean and the handles don’t corrode at the spot weld .
 
I know of at least three boats running the swimming pool pumps that have passed multiple annual inspections by the USCG. All of them are diesel and not gas.
That's a troubling argument in my opinion. What does ABYC have to say about marine electricals and equipment? What kinds of electric motors did Hatteras put in our boats (diesel or gas)? NTSB accident reports are replete with inspections that fail to take note of some pretty basic discrepancies. Saying it's OK because it passed inspection is awfully close to accepting a I got away with it mindset. Human nature, wouldn't you agree? I wonder how one would feel paying a contractor to fix a problem and discovering an installed component that wasn't rated for the usage. We don't have to wonder about an insurance company's position.

A 57' diesel boat caught fire and sank off Charleston this past week. We don't yet know the cause. We do know the insurance company will look for any reason to mitigate or deny their exposure. A 74' Hatteras (Inspected Passenger Vessel), at this marina, passed multiple annual inspections that'd leave a blind man scratching his head. I mean how does a boat with a rotten transom and paper thin thru hulls, sans, bonding pass?* The owners got away with that and much more for years. A change in sector command added emphasis to inspections and did away with the seemingly unlimited automatic two-week compliance extensions. That boat's certificate was jerked, and spent six months in a yard to try for recertification. The list of deficiencies was epic.

So, saying a repair passed inspection and is, therefore, an approved repair is kinda like troopers allowing 10 over the limit. You got away with it. Getting away with an extra 10MPH makes justifying another 5 that much easier.

I realize it's a gray world, and who doesn't want to stretch a boat unit?

* Since that boat left for the yard, my zinc life has almost quadrupled.
 
actually, the 10 mph is designed into the speed limit.:)
 
All this A/C talk got me to clean the strainer when in the ER this afternoon. Someone left me a little surprise in the basket:

View attachment 50444

I don't know if the PO or the A/C guy put those copper pipe pieces in there. I guess it works because the strainer was very clean after a lot of use for the last couple months.

What's theory of the copper?
 
You make one. Not difficult.

Alright Clarkson, you were right again. $11 for a tiny little piece of cork - I feel abused. I know I have some in a box somewhere too...just have to hunt for it.

Your next suggestion will be met with, "Yes Cap'n...right away.
 
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Alright Clarkson, you were right again. $11 for a tiny little piece of cork - I feel abused. I know I have some in a box somewhere too...just have to hunt for it.Your next suggest will be met with, "Yes Cap'n...right away.
Cardboard will work in a lurch. Dismissed
 
That's a troubling argument in my opinion. What does ABYC have to say about marine electricals and equipment? What kinds of electric motors did Hatteras put in our boats (diesel or gas)? NTSB accident reports are replete with inspections that fail to take note of some pretty basic discrepancies. Saying it's OK because it passed inspection is awfully close to accepting a I got away with it mindset. Human nature, wouldn't you agree? I wonder how one would feel paying a contractor to fix a problem and discovering an installed component that wasn't rated for the usage. We don't have to wonder about an insurance company's position.

A 57' diesel boat caught fire and sank off Charleston this past week. We don't yet know the cause. We do know the insurance company will look for any reason to mitigate or deny their exposure. A 74' Hatteras (Inspected Passenger Vessel), at this marina, passed multiple annual inspections that'd leave a blind man scratching his head. I mean how does a boat with a rotten transom and paper thin thru hulls, sans, bonding pass?* The owners got away with that and much more for years. A change in sector command added emphasis to inspections and did away with the seemingly unlimited automatic two-week compliance extensions. That boat's certificate was jerked, and spent six months in a yard to try for recertification. The list of deficiencies was epic.

So, saying a repair passed inspection and is, therefore, an approved repair is kinda like troopers allowing 10 over the limit. You got away with it. Getting away with an extra 10MPH makes justifying another 5 that much easier.

I realize it's a gray world, and who doesn't want to stretch a boat unit?

* Since that boat left for the yard, my zinc life has almost quadrupled.

My only comment, if it matters, is if my a/c goes out because of the pump and I have guests on board or coming sooner than I can get a pump is that I am going to the Homo Depot and buying a swimming pool pump. Im not going to have them sit in this FL heat waiting on Oberdorfer to build me a pump thats going to take 4-6 weeks to get. I spent $400 on an obordorfer brass impeller bait well pump that was the exact one that came with the boat. While the pump looked impeccable the 32V motor they had attached to it was questionable. Didn't look like anything water resistant. Sure enough 9 months later, after the 6 month warranty expired, it crapped out. I bought a "cheap" 32volt Jabsco pump and its been running great for 3 years now. The electric motors Hatteras put on our boats don't look sealed in any way to me. Salt destroys the head motors as well as bait pumps. I haven't seen any stamps on them like UL or ABCY but maybe they are worn away. I know the starters are solid motors but cant say much for the rest of the electrical pumps. Also curious what type of 110V water pump everyone has on their boat. I have a Homo Depot well pump. Most everyone I know has a well pump. If they have caused any fires I don't know about it. I hope my engine room fire extinguishers, that passed inspection, work right cause it sounds like I am going to need them some day.
 
Going to get a pool pump sounds fine until you realize you don’t have the fittings to make it work. Air con is a critical system and I always carry a spare pump ready to be swapped. The best setup is when you have two pumps installed with a selector switch and a couple of valves, it s not hard or expensive to rig. If one fails you re back in business and within minutes.

And yes I have a shallow well pump (flojet) plus a DC backup.
 

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