Question about RTO Waste King AH-780-UL Quick&Hot Instant Hot Water Dispenser - Tank Only

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Quick & Hot Model AH-780 and top output tube to dispenser faucet

Quick & Hot model AH-780 and output tube on top: neoprene yellow tube has hole and is leaking. What is the best tube type for this unit? What dispenser faucet works best with this so that this tube can be replaced? Our top dispenser faucet apparently has a permanently fixed tube and it can't be replaced. We've already had plumber cut the tube at the Quick & Hot outlet on top and re-clamped it. The heat has melted the tube where the hot water outputs to the tube that leads to the faucet again.

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Posted on Jan 02, 2017

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SOURCE: Quick & Hot model AH-780

That center connection uses a clamp. You made no mention of the clamp in the post. Did you get a clamp with that unit? IT is a squeeze clamp and you put it over the inlet tube and connect the tube to the unit and then slide the clamp down to the connection and open the clamp and continue sliding it down over the nipple on the tank and then release it.

Posted on Aug 27, 2011

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well the tank is made of brass and copper. That takes away that it is the unit. It sounds like lime buildup. Now what does happen as water goes into the tank and heats up lime will remain in the tank. Then as time goes buy it then starts to get to heavy and relesase itself and then the clog effect it taking place.

the best thing you can do now is reverse flow water into the tank and wash it out, its call beack washing. Yu can buy some products to put in at first to help break it down and then you get ore out.

With the new whole house units they now install a vakve set that has two way valves so you can backwash the tanks and stay ontop of the lime.

You must be asking where does the linme come from, well it starts at the well where the water department gets there water. then it goes into a filtering system and they use a lime to act as the filter agent then it heads out to the system and coats the pipes all along the way. I have cut 16 inch pipe and there was solid inch of lime caked inside.

I tell many people if yuo looking inside the water system yo would never drink the water. You might want to think about getting a whole house filter system to slow down the kime that geets in.

Thanks so much be safe in all that you do.

Yom

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Sep 11, 2011 | RTO Waste King AH-780-UL Quick&Hot Instant...

1 Answer

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If this is a screw thread, then check if nut that comes with toilet flush valve will fit.

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Hi

Please try and remove the cap by turning it clockwise and counter clock wise to remove it. If it doesn't come off then empty the water dispenser and use glue to fix the leak. See this link to see which type of glue should be used--- Glue Usage

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Please do accept this solution and revert for further assistance.

Thanks
Rylee

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