What is this device on my fresh water system?

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Dempsey00

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Aug 2, 2012
1
Hunter 27 Lake Lanier
Hello All,

I recently purchased a 1978 Hunter 27. The PO installed a pressurized freshwater system and I cant figure out what this 3" PVC elbow is used for. The ends of the elbow have been reduced and house a 1/2" male fitting. The entire device is sealed. Therefore, I do not know what is inside of it. It is connected to the water pump output hose in between the pump and a one way spring/ball valve. Thanks for any replies.
 

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Don S/V ILLusion

Don S/V ILLusion

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Sep 25, 2008
7,695
Alden 50 Sarasota, Florida
from your description and the picture, I'd say it is a crude version of an accumulator tank.
 
Dan Hill

Dan Hill

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Dec 16, 2006
353
Hunter 25.5 Cayuga Lake, NY
Maybe it's a crude homemade charcoal filter? Does it rattle when you shake it?
 
onecoolair

onecoolair

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Jun 25, 2012
942
hunter 356 Kemah,the Republic of Texas
Dempsey00 said:
Hello All,

I recently purchased a 1978 Hunter 27. The PO installed a pressurized freshwater system and I cant figure out what this 3" PVC elbow is used for. The ends of the elbow have been reduced and house a 1/2" male fitting. The entire device is sealed. Therefore, I do not know what is inside of it. It is connected to the water pump output hose in between the pump and a one way spring/ball valve. Thanks for any replies.
Click to expand
Home made expansion pressure regulator.
 
All U Get

All U Get

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Oct 2, 2008
3,811
Pearson/ 530 Strafford, NH
Dempsey00 said:
Hello All,

I recently purchased a 1978 Hunter 27. The PO installed a pressurized freshwater system and I cant figure out what this 3" PVC elbow is used for. The ends of the elbow have been reduced and house a 1/2" male fitting. The entire device is sealed. Therefore, I do not know what is inside of it. It is connected to the water pump output hose in between the pump and a one way spring/ball valve. Thanks for any replies.
Click to expand
Here's the one we installed (upper right hand shelf), your's is just as good and a bit cheaper.
All U Get
 

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Gunni

Gunni

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Mar 16, 2010
5,937
Beneteau 411 Oceanis Annapolis
Likely filled with activated charcoal - those end pieces will screw off. Can't be an accumulator, there is no bladder or provision for an air space.

You don't need it.
 
kloudie1

kloudie1

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Nov 6, 2006
10,219
Hunter 34 Mandeville Louisiana
If installed with the "hump" upward (nipples below) it will hold a little air, maybe enough to quieten the pump and let it cycle less.. ??
 
Slow Mo^cean

Slow Mo^cean

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Jul 1, 2012
155
Catalina C22 Georgetown
Maybe the PO's local hardware store ran out of 1/2" elbows, and he had to make due with what they had in stock???????????
 
Jeff

Jeff

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Sep 29, 2008
195
Hunter 33.5 Carlyle Lake in Central Illinois
Have you got Rube Goldberg's old boat?
 
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