Said It Here

Replacing a rusted well pump pressure tank and plumbing

Corroded pump connections and burst internal bladders ruin pressure tanks, forcing homeowners to relocate new tanks or replace them with different sizes. Dealing with these plumbing failures makes it difficult to secure safe, leak-free connections without knowing if alternative tank dimensions will fit the system.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    leaving the old corroded tank in place to serve as a pump stand while placing the new pressure tank to the side
  2. 2
    using stainless steel nipples instead of PVC for plumbing connections
  3. 3
    Comparing physical dimensions side-by-side at the shop and relying on seller advice regarding tank expansion

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/Plumbing2 people · September 2026 – October 2026

“These lines leaked at the pump connection, corroding the pressure tank under the pump that served both as a pump scaffold and a pressure tank.”source ↗

“Pressure tank is shot- so I got a new one- which I'm placing to the side of the old tank”source ↗

StillStaringAtTheSky · r/Plumbing · 1 upvotes

“Hi guys need advice, the rubber inside our 80L bladder tank has burst and when we went to shop to buy a new one they only have 100L from different brand but we dont know if it has the same dimensions but when we compared it side to side its a little bit the same ours just a bit bigger the seller says because its hursted and already expanded. Should we buy the 100L?”source ↗

Illustrious_Cherry92 · r/Plumbing · 1 upvotes

Where this came up

People with this problem also raised