I had some serious odor coming from the holding tank area that I traced to the hose fittings. I removed the tank and found that the fittings are threaded into bosses glued? into the tank. The glue joint seam at this location is cracked. Can this be repaired, or do I need a new tank? Also as I've got the tank out I'm going replace all the sanitation hoses. What is the current thought on the best hose (brand & Model) for waste systems? Thanks. BTW boat is a 1979 Sabre 34
Hoses and cracks
- Thread starter shorty10709
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If tank is PE, fittings are spinwelded, not glued
Spinwelding is done with a tool that melts the edges of the fitting and the edges of the hole while also injecting new melted PE so the whole mess runs together to become a single mass. So what looks like glue is the excess PE. Either it wasn't done correctly, or a straight thread-barb fitting was used where a 90 was needed, putting too much stress on one side of it that broke the weld...or, if the female threaded "collar" has split, somebody over tightened a thread-barb fitting. It can be repaired by simply drilling the existing fitting out and spinwelding a new one in...that is, IF you can find a plastics fabricator willing to work on a used waste tank. Check your yellow pages and cross your fingers while you do some serious cleaning and deodorizing of the tank. Btw, spinwelding requires a bit more skill than may be obvious, so this is not a DIY job if you want to make sure the new weld holds. Otoh, if the tank walls are thin, it might be smarter to replace it instead. As for hose, the best choice is Trident 101/102 http://www.tridentmarine.com/stage/sanitation.htm Contact Trident for a dealer in your area. The only other good choice is SeaLand OdorSafe. Both are only available in 1.5"...use Shields or Trident 148 for smaller diameter hoses.
Spinwelding is done with a tool that melts the edges of the fitting and the edges of the hole while also injecting new melted PE so the whole mess runs together to become a single mass. So what looks like glue is the excess PE. Either it wasn't done correctly, or a straight thread-barb fitting was used where a 90 was needed, putting too much stress on one side of it that broke the weld...or, if the female threaded "collar" has split, somebody over tightened a thread-barb fitting. It can be repaired by simply drilling the existing fitting out and spinwelding a new one in...that is, IF you can find a plastics fabricator willing to work on a used waste tank. Check your yellow pages and cross your fingers while you do some serious cleaning and deodorizing of the tank. Btw, spinwelding requires a bit more skill than may be obvious, so this is not a DIY job if you want to make sure the new weld holds. Otoh, if the tank walls are thin, it might be smarter to replace it instead. As for hose, the best choice is Trident 101/102 http://www.tridentmarine.com/stage/sanitation.htm Contact Trident for a dealer in your area. The only other good choice is SeaLand OdorSafe. Both are only available in 1.5"...use Shields or Trident 148 for smaller diameter hoses.
Hi Peggy Hall
This problem sounds similar to one I have on my water tank. The vent line connector/nipple has broken off where it is attached to the tank. It is semi-translucent white plastic (is that polyetheline). Thanks, Jim
This problem sounds similar to one I have on my water tank. The vent line connector/nipple has broken off where it is attached to the tank. It is semi-translucent white plastic (is that polyetheline). Thanks, Jim
Yep...that's PE (polyethylene)
Find a plastics fabricator who does spinwelding, take the tank to 'em to replace your vent fitting. Shouldn't cost more than $10.
Find a plastics fabricator who does spinwelding, take the tank to 'em to replace your vent fitting. Shouldn't cost more than $10.
Trident 101 - 102
Hi Peggie I need to replace 20+ feet of hose. I have tried to find a dealer that stocks Trident 101 or 102, and will ship some, but to no avail. My hose is not selfdraing, and I winterize with alcohol based anti-freeze, so I liked the fact that Trident's site said that 101 and 102 were alcohol resistant. If I can't get Trident, what is your 2nd choice. Many thanks Mal
Hi Peggie I need to replace 20+ feet of hose. I have tried to find a dealer that stocks Trident 101 or 102, and will ship some, but to no avail. My hose is not selfdraing, and I winterize with alcohol based anti-freeze, so I liked the fact that Trident's site said that 101 and 102 were alcohol resistant. If I can't get Trident, what is your 2nd choice. Many thanks Mal
Have you tried calling Trident?
Seems to me that would be way to find a dealer, 'cuz vendors usually know who their customers are. Contact info for Trident is on their website: http://www.tridentmarine.com/stage/sanitation.htm
Seems to me that would be way to find a dealer, 'cuz vendors usually know who their customers are. Contact info for Trident is on their website: http://www.tridentmarine.com/stage/sanitation.htm
Fresh Water Sink Drain to Pump
Hi,Peggie A while back I saw one of your posts about running the fresh sink drain to the pump inlet via a fitting. Unfortunately, I can't seem to find it. Can you send me a link. What should I do about the current sea water intake. Just shut the valve and forget it? Thanks for your help. Mal S.
Hi,Peggie A while back I saw one of your posts about running the fresh sink drain to the pump inlet via a fitting. Unfortunately, I can't seem to find it. Can you send me a link. What should I do about the current sea water intake. Just shut the valve and forget it? Thanks for your help. Mal S.
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