c_oneil
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Re: I want to add a hot water recirc line to my trailer
I installed a recirc line in my motor homne and am very happy with it. I put a 'T' in the hot water supply line to the kitchen faucet (this is the furthest faucet from my hot water tank). The water from the 'T' is plumbed through a plastic ball valve inside the door of the faucet cabinet and then routed through a hole in the floor to a 'T' at the outlet of my fresh water tank. When you open the ball valve the cool water in the hot water line is pumped by either city water pressure or by the fresh water electric pump back into the outlet line of the fresh water tank where there is no pressure. It only takes 10-15 seconds and then you turn off the ball valve. The water from the kitchen faucet is now immmediately hot and not a drop goes into the grey tank waiting for hot water. One small drawback is that when hooked up to city water and while the ball valve is open you are adding fresh water to you tank. If you were to turn on the valve and walk away you would over fill your fresh tank at some point. Never happened so far. It would just spill out the vent tube anyway.804Views0likes0CommentsRe: Vacuum pump for Unified Tow Brake
Hello, Your post is a little old but nobody has posted any replies and maybe you still are looking for input on this so here goes. I just installed a used UTB-1000 brake on my toad and did a little testing. I think you could find a stock automotive brake booster pump. I checked the vacuum on my pump and got about 15" of vacuum. It took about 3-4 seconds to pull it to the max (would vary on the size of your toad brake booster and capacity of the pump you found)and it held it after the pump shut off with no leakage. The pump inside the black plastic case acording to the label is a Geman made electric motor and a small plastic piston pump on the end. The label was hard to read but it looks like 12vdc and 2.1amps. There is no electrical control in the pump itself. If it gets 12v it runs. The power module supplies 12v to the pump and the solenoid at the same time on a single circuit. The reason the solenoid turns off before the pump is that it is controlled by the power module through the ground wire fron the solenoid back to the power module. The pump ground just goes direct to the frame of the toad. Over load of the power module shouldn't be a problem if the new pump draws somewhere in the neighborhood of 2amps. Judging by the size of the wires the solenoid draws way more current than the pump. There was some troubleshooting information on the Unified Gear web site that would help you tell if there may be a problem with your solenoid or power module. If you find a suitable replacement I would me interested to hear in case mine goes bad.310Views0likes0Comments
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