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removing the water tank from a national hot beverage vender

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Fri, 05/30/2014 - 13:48
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steveofthenw
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Last seen: 10 years 5 months ago
Joined: 05/30/2014 - 13:36
removing the water tank from a national hot beverage vender

Got a leaking tank in a 633d machine. Don't know where the leak is coming from yet except it appears to be coming from the tank inside the machine (already checked the fitting outside of the machine & it's tight). None of the fittings inside are weeping so it must be the tank & I gotta take it out.
Any tips, online video tutorials, etc that a brother who's new to the game can access?
Much obliged

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Sat, 05/31/2014 - 02:41
AZVendor
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Last seen: 7 years 6 months ago
Joined: 02/07/2014 - 18:59
You don't need to remove the tank unless you rule out all the

other components on the tank first. The first thing to look at is the valves themselves. Look around each valve body where it plugs into the tank for any drips on the bottom of the body where it fits into the tank. If you see a drip on any of them then it's time to remove all valves and replace the o-rings on them.

Next, expose the heating element and inspect it for any drips under it. There is a gasket between the flange on the element and the tank surface that can begin to leak.

After that, inspect around the lid of the tank for any sign of moisture. Be careful as the tank is very hot. If the silicone seal around the tank lid fails or has an open gap (you won't find it unless you take the lid off) then you could get steam condensing on the edge of the lid and dripping off.

If all of this checks out then inspect the overflow hose from the top of the tank down to the waste bucket for any breaks in the hose or fittings that could allow steam to leak out. Just on a whim, I'd also inspect your waste bucket for any cracks. You could also have leakage at a mixing bowl if a hose has come loose (then one selection won't get water) or a hose has split.

Then to check something you might not have thought of, make sure your spray hose is stored in it's bracket which will put it higher than the water level to prevent siphoning. If you let the hose and sprayer just hang down it will leak water out. You should also check the fitting where this hose mounts to the tank and inspect this hose as well.

If you end up finding a leaking o-ring and remove all the valves to replace them, then you would be smart to replace the valve diaphragms in each valve at the same time.

Can you tell us where you are seeing the water and how much of it there is?

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