Said It Here

Debris floating in water cistern keeps coming back

Water cisterns in older flats can accumulate floating debris, bags, and towels that keep returning even after multiple cleanings. This persistent junk eventually plugs up attached plumbing fixtures, such as bidet showers connected to the flush tank inlet.

Overview
People affected2 accounts across 1 forum
Workarounds found4 items attempted
Community agreement1 total upvotes

What the numbers show

Counted from the threads quoted below. How we count

  • People have been saying this in most months since September 2026.

What people tried

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

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    removing the debris and other crap
    Did this help you?
  2. 2
    using an electric shower powered by the cold mains supply
    Did this help you?
  3. 3
    run
    Did this help you?
  4. 4
    Repeatedly cleaning the tank and the plugged attachments
    Did this help you?
Tried another approach not listed above?+ Share your workaround ↑

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 – November 2026

“I have cleaned this up many times and they keep coming back.”source ↗

“It is plugging up the bidet shower that I have attached to the water intake of the flush tank inlet.”source ↗

Khusboowalay · r/Plumbing · 1 upvotes

“A friend of mine recently moved into a very old flat (UK, rented) and has (what I believe to be) a cistern that feeds a hot water cylinder with an immersion heater.”source ↗

“We then saw this: a cistern with bags, towels and other crap floating in it.”source ↗

No-Purpose-101 · r/Plumbing

Where this came up

People with this problem also raised