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Max Online: 36273 @ 01/23/13 02:34 PM
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#12660299 - 03/06/18 06:29 AM Joining 3/4 hose to 5/8 hose???
ConwayFishy Offline
Outdoorsman

Registered: 02/26/18
Posts: 55
Loc: Northeast Texas
Need to find a way to join, and make water tight, 3/4 inch hose that's really stiff (Automotive) to 5/8 inch flex hose that's going into a bilge pump. I tried yesterday and when I turn on my bilge it pumps...but it's kind of like drinking through a straw with a crack in it. It pumps very slowly and leaks through that joined area. Tips?
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#12660356 - 03/06/18 07:11 AM Re: Joining 3/4 hose to 5/8 hose??? [Re: ConwayFishy]
TCK73 Online   content
TFF Team Angler

Registered: 03/26/15
Posts: 3834
Loc: Jack County
Get a 3/4” to 5/8” Hose mender and join them. The stiff one really should be replaced, but if your not going to, use some sort of sealant/adhesive like 4200 to help seal it.

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#12661397 - 03/06/18 07:12 PM Re: Joining 3/4 hose to 5/8 hose??? [Re: ConwayFishy]
ConwayFishy Offline
Outdoorsman

Registered: 02/26/18
Posts: 55
Loc: Northeast Texas
What is 4200?
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Dad, Husband and the Proudest Member of the Fightin' Aggie Class of 2008

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#12661565 - 03/06/18 08:44 PM Re: Joining 3/4 hose to 5/8 hose??? [Re: ConwayFishy]
Allison1 Offline
TFF Guru

Registered: 12/14/03
Posts: 18683
Loc: Grand Prairie, Tx
https://www.ebay.com/itm/Aluminum-3-4-to-5-8-Hose-Adapter-Connector-Reducer-2-Pack/173199154899?hash=item2853795ed3:g:WnEAAOSwXY5ZS7z9&vxp=mtr

Ebay, two for 12 dollars. Just use a hose clamp on each end.
You can probably find something like this in plastic at Home Depot.

You don't need sealant.





Edited by Allison1 (03/07/18 05:56 AM)

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#12661574 - 03/06/18 08:48 PM Re: Joining 3/4 hose to 5/8 hose??? [Re: ConwayFishy]
TCK73 Online   content
TFF Team Angler

Registered: 03/26/15
Posts: 3834
Loc: Jack County
Originally Posted By: ConwayFishy
What is 4200?


It’s a good adhesive/sealer, 3M-4200.

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#12661813 - 03/07/18 05:52 AM Re: Joining 3/4 hose to 5/8 hose??? [Re: ConwayFishy]
ConwayFishy Offline
Outdoorsman

Registered: 02/26/18
Posts: 55
Loc: Northeast Texas
Thank you. I'll go to the hardware store and try to find an adapter that fits both hoses perfectly and tight. I'll get a little of this sealant and put some on the adapter before I clamp the hoses down as tight as I can. Hopefully this does the trick.
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Dad, Husband and the Proudest Member of the Fightin' Aggie Class of 2008

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#12661966 - 03/07/18 08:10 AM Re: Joining 3/4 hose to 5/8 hose??? [Re: ConwayFishy]
spankyttx Online   content
Extreme Angler

Registered: 01/22/09
Posts: 1254
Loc: Denton Tx.
i wouldn't use that sealant if i were you, the hose clamp will be just fine
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