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-   -   Water Tanks - Repair/Replace - Opinions (http://www.trawlerforum.com/forums/s3/water-tanks-repair-replace-opinions-25283.html)

CarlinLA 04-10-2016 12:06 AM

2 Attachment(s)
Crawled back into the laz today to plan the tank replacement...

Good news on the wood deck supports - they are bolted in place. should be easy to remove.

Evidence of the tank leaks. planning on repainting lazzerete to refresh those surfaces.

BTW - how do you like that chopper-gun layup on the Taiwan Trawler? Eh, uh, well, hummm... no.

FF 04-10-2016 05:32 AM

"how do you like that chopper-gun layup on the Taiwan Trawler? Eh, uh, well, hummm... no."

Properly done a chopper gun laminate does meet LLoyds GRP rules.

Capt Jack 04-10-2016 09:26 AM

[QUOTE=CarlinLA;432032]Crawled back into the laz today to plan the tank replacement...

Good news on the wood deck supports - they are bolted in place. should be easy to remove.

Evidence of the tank leaks. planning on repainting lazzerete to refresh those surfaces.

What model is Satori? I have a 1984 34 Europa with the same issue on the starboard side tank. Will be very interested in following your progress on this project!

John

CarlinLA 04-10-2016 09:55 AM

2 Attachment(s)
[QUOTE=Capt Jack;432085]
Quote:

Originally Posted by CarlinLA (Post 432032)
Crawled back into the laz today to plan the tank replacement...

What model is Satori? I have a 1984 34 Europa with the same issue on the starboard side tank. Will be very interested in following your progress on this project!

John

Satori is a 1985 model... Post a pic of your interior - want to see the differences...

Looking forward to the lazarette remodel... fresh paint all around, new tanks and plumbing... should really bring that area back to bristol.

Capt Jack 04-14-2016 09:50 PM

[QUOTE=CarlinLA;432100]
Quote:

Originally Posted by Capt Jack (Post 432085)

Satori is a 1985 model... Post a pic of your interior - want to see the differences...

Looking forward to the lazarette remodel... fresh paint all around, new tanks and plumbing... should really bring that area back to bristol.

Sorry for the delay - i travel a lot for business and can't always monitor while on the road. I will be back on Salty this weekend and will get some photos of the interior.

Nice looking boat!

John

CarlinLA 04-15-2016 07:33 PM

6 Attachment(s)
Picked up the replacement water tanks from Ronco earlier today.

Major learning process.

The tanks come out of the roto-mold with all solid sides. The technician has to drill holes specific to each tank situation.

After drilling the tank is vacuumed.

Then he "heat-welds" the appropriate fitting to the tank.

Ronco had ball valves and nipples too.

And both tanks fit in the Honda.

Cool.

boatpoker 04-15-2016 07:35 PM

Quote:

Originally Posted by FF (Post 432050)
"how do you like that chopper-gun layup on the Taiwan Trawler? Eh, uh, well, hummm... no."

Properly done a chopper gun laminate does meet LLoyds GRP rules.

LLoyd and his other brother Darrell ? :)

jus' kiddin' . I'd like to learn more about that, do you have a link ? I have not been able to find a GRP reference in their rules.

Capt.Bill11 04-15-2016 07:46 PM

Quote:

Originally Posted by boatpoker (Post 433890)
LLoyd and his other brother Darrell ? :)

jus' kiddin' . I'd like to learn more about that, do you have a link ? I have not been able to find a GRP reference in their rules.

He's not far off the mark. There is nothing wrong with a proper chopper gun job used in the correct way. And I wouldn't be surprised if it could meet certain class requirements depending on the classification society involved and level of class the boat is being built to.

But it wouldn't surprise me if that is not a copper gun job. Just an average job of hand lay up of chop cloth.

boatpoker 04-15-2016 07:59 PM

Quote:

Originally Posted by Capt.Bill11 (Post 433891)
He's not far off the mark. There is nothing wrong with a proper chopper gun job used in the correct way. And I wouldn't be surprised if it could meet certain class requirements depending on the classification society involved and level of class the boat is being built to.

But it wouldn't surprise me if that is not a copper gun job. Just an average job of hand lay up of chop cloth.

Not really interested in whats wrong or not wrong with it, I already know, I've worked a lot with both. I'd just like to learn about Lloyds requirements for it.

boatpoker 04-15-2016 08:12 PM

Quote:

Originally Posted by FF (Post 432050)
"how do you like that chopper-gun layup on the Taiwan Trawler? Eh, uh, well, hummm... no."

Properly done a chopper gun laminate does meet LLoyds GRP rules.

Don't bother, I found them.

CarlinLA 04-15-2016 08:35 PM

Quote:

Originally Posted by FF (Post 428343)

It is fairly cheap per fitting so do not forget to install at least a 2 inch drain as low as you can get in the tank.

Winterizing can take a LOOOOng time is the fresh water pump is needed to drain it.

Yea.

I remembered.

But I went with a 1-1/2 bulk drain.

ulysses 04-15-2016 08:48 PM

They look nice and functional. One question on the heat installation of the fittings you refer to it as "heat welding" when it is being "welded" is heat being applied on both the inside and outside of the tank / fitting ? Did they happen to mention the temperature to perform this task ? and a certain type of plastic (HDPE ?)
About the time I was getting out of the pipeline business they were starting to spec HDPE pipe on certain projects and I did not make the investment in the heat welding equipment. Just did not bid those jobs but I did try to learn enough about it to ask some more questions. It was my understanding that one form had to have heat on both sides applied to properly weld. They do look good/ clean/ and well made. I hope they serve you well.

CarlinLA 04-15-2016 08:56 PM

Friction.

He had something of a router with a driver that fit the fitting - spinning it really fast while pressing down. When the smoke cleared the fitting truely appears welded.

They said it is a polyurethane tank???

Appreciate the good thoughts... this job is only 20% done.


Quote:

Originally Posted by ulysses (Post 433930)
They look nice and functional. One question on the heat installation of the fittings you refer to it as "heat welding" when it is being "welded" is heat being applied on both the inside and outside of the tank / fitting ? Did they happen to mention the temperature to perform this task ? and a certain type of plastic (HDPE ?)
About the time I was getting out of the pipeline business they were starting to spec HDPE pipe on certain projects and I did not make the investment in the heat welding equipment. Just did not bid those jobs but I did try to learn enough about it to ask some more questions. It was my understanding that one form had to have heat on both sides applied to properly weld. They do look good/ clean/ and well made. I hope they serve you well.


ulysses 04-15-2016 09:08 PM

So the heat was produced through friction and would necessarily be throughout the fitting and both sides. I had wondered if they did not just thicken in extrusion or mold and boss an area thicker then tap did not look like that was going on.
Thanks and good luck.

FF 04-16-2016 05:45 AM

It is not possible to thicken a box inside in one spot ,,so the spun in fitting has a wide flange that increases the surface area .

CarlinLA 04-17-2016 08:26 PM

Quote:

Originally Posted by FF (Post 434021)
It is not possible to thicken a box inside in one spot ,,so the spun in fitting has a wide flange that increases the surface area .

I believe I did see some that were thickened... but the thickening was on the outside - which makes senseas the rotomold pushes the urethane to the outside of the mold

CarlinLA 04-17-2016 08:36 PM

5 Attachment(s)
Continuing progress... port tank is out.

Many holes.

Laz needs paint.

Yucky whitish water pouring out.

But it is on its way to the recycler.

Up next... Kilz Adhesion!

CarlinLA 04-17-2016 08:44 PM

1 Attachment(s)
Taiwan turkey quality...

I lifted this post base off the hull with little effort...

Of course it is 30-years old - and soaked from the leak.

Capt Jack 04-22-2016 06:22 PM

5 Attachment(s)
[QUOTE=CarlinLA;432100]
Quote:

Originally Posted by Capt Jack (Post 432085)

Satori is a 1985 model... Post a pic of your interior - want to see the differences...

Looking forward to the lazarette remodel... fresh paint all around, new tanks and plumbing... should really bring that area back to bristol.

As requested (finally...) sorry, work definitely gets in the way sometimes.

John

CarlinLA 04-23-2016 08:55 PM

Very similar but apparently reversed in the salon and your head is opposite mine...


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