"....and think that it's wet around the connection to
where the hose fits in.
Does anyone know where to get replacement parts, or fix this
or do you just buy a new one?..."
The plastic water tanks, farm or RV I have seen have screw thread
connections that are NPT (national pipe tapered). Some makers will use
metal pipe nipples for the connection. Bad news! The reason is that
plastic will expand and contract more with changes from hot to cold than
metal. If the connection does not leak in the summer, the plastic will
contract in the winter and put more strain on the plastic than it should
have. After a few years of this the plastic cracks.
The usual solution is to buy a new tank, and change to plastic
fitting with a rubber gasket. These are available at farm stores (for use
on agricultural sprayers) or RV dealers (but not as many sizes).
If you are really cheap you may be able to repair a cracked plastic
tank. The procedure would be: 1. Drill a small hole (say 1/8") at the end
of each crack this relieves the stress. 2. Use a Dremmel tool to make each
crack into a "U" shape. You do not have to go all the way through, just
half way or so. 3. Use a hobby hot glue gun to fill the holes and
cracks. 3. Then switch to a gasketed plastic fitting. Note: this
will not work if, as usual, the cracks go through the threads in the outlet boss
on the tank.
Ed
Ed & Wendy Hauser 2994 Mittower
Road Victor, MT 59875