Steel or plastic water tank?

[Bo2020]

Hello all. This is my first post.

I have an 83 airstream excella and was wondering what type of fresh water tank these have in them?

I don't want to remove some of the sheet metal underneath just to find this out. Can some one chime in on this?

Thanks

[SteveH]

First, welcome to the forums.

Way early on, like in the 60's, the water tank was aluminum, and that was the pressurised one.

I don't know exactly when they changed, but they are plastic now, and have been for quite a while.

[Jammer]

I believe the early pressurized water tanks were in fact galvanized steel, not aluminum.

A 1983 trailer would have a plastic tank. The switch away from steel took place in the early 1960s.

[SteveH]

Originally Posted by Jammer

I believe the early pressurized water tanks were in fact galvanized steel, not aluminum.

A 1983 trailer would have a plastic tank. The switch away from steel took place in the early 1960s.

My father had a '61 31' that had a pressurized aluminum tank in it. Don't remember the year of his next Airstream, but it had a plastic tank with the demand water pump....the one with the belt, crank shaft, rod, and piston/diaphram.

[Jim Foster]

Our '83 Excella has a plastic tank. It is held in place by the bolted on pan. there are no straps holding the tank.

[buda-2]

Bud here; I have a galvanized steel 14''X 60'' that has a 4'' tear in it.
It has a air pump that pressure the tank to push the water up the pipes.
Can I use a plastics tank and will hold the 50/60 pounds, and change to a water pump.
Thanks 24/62 tradewind
　
　

[markdoane]

You can use a plastic tank with a water pump. 50/60 lbs is about 6-7 gallons.