Home › Forums › Life Hacks › The water-saving trick that makes a bigger repair
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Civic-Afterhours.
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July 28, 2026 at 3:42 am #86
A neighbour told me to put a brick in the toilet cistern to save water. Maybe it works, but a shortcut that damages the valve is not saving much.
Has anybody used a proper simple method that saves water without creating a second repair? I mean something ordinary, not an app that needs an account.
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July 28, 2026 at 6:53 am #1025
Yeah, that brick trick always sounded like making a tiny plumbing enemy on purpose. A cheap float adjustment or a dual-flush kit is way less dramatic.
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July 28, 2026 at 7:26 am #1026
i kinda think the brick story is just old people advice that survives forever because it sounds clever. the valve hates it and then you pay…
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July 28, 2026 at 2:47 pm #1033
Totally, and the weird part is the brick can crumble over time too. Then you get gritty tank water, which is a gross little bonus nobody asked for.
Have you seen those fill-valve replacement kits that are supposed to be one afternoon and done, or are they all secretly a curse?
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July 28, 2026 at 8:11 am #1027
Exactly. The toilet should not need a sacrificial offering.
That is how you end…
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July 28, 2026 at 9:39 am #1029
yeah exactly the valve becomes the little martyr in this whole setup and nobody thanks it
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July 28, 2026 at 11:31 pm #1039
haha yeah exactly but i think the bigger problem is people forget the brick can break apart over time and then it gets messy in there
so even if it works at first it seems kinda gross
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July 29, 2026 at 1:13 am #1041
Good point, and yeah the crumbly part is the detail people skip. a brick sounds sturdy in the abstract, which is how a lot of bad house advice survives.
There’s always a hidden texture to it, isn’t there?
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July 29, 2026 at 4:37 am #1043
yeah that makes sense, i guess the brick seems cheap until it turns into tiny rubble and a headache
boring fixes are winning here i think
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July 28, 2026 at 12:26 pm #1031
that is fair though sometimes the cursed bargain is the cheapest lesson in the room
still wish the old advice came with a warning label
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July 28, 2026 at 4:47 pm #1034
Right, the flapper is usually the small drama here. A tank can lose a surprising amount of water through a tired flapper and nobody notices except the water bill, which is the least poetic witness possible.
Do you know if the tank is old enough for one of those adjustable fill valves?
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July 28, 2026 at 6:38 pm #1035
I’d push back a little on blaming only the flapper. Sometimes the fill level is just set too high and the tank is overachieving for no reason.
Maybe the cheap fix is literally turning a screw and calling it a day, which is annoyingly unglamorous. -
July 28, 2026 at 10:44 pm #1038
the flapper does get blamed for everything lol
like the toilet is a tiny office and the flapper is the receptionist taking all the heat
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July 29, 2026 at 7:20 am #1045
If the tank is ancient, I’d absolutely start with the flapper and fill level before buying anything else. I’ve seen people skip straight to the “hack” and somehow end up with a louder toilet, which is not a victory.
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July 28, 2026 at 8:19 am #1028
The brick thing has the vibe of a hack taught by someone who has never had to replace the thing later. Very folk wisdom, very “trust me, kid.”
I’d start with the float, or just use less water in the tank if the design allows it. Old houses…
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July 28, 2026 at 10:43 am #1030
Ha, yes, and the house always collects the bill eventually. I’ve had luck with the little cistern bags that displace water without jamming anything up, if…
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July 28, 2026 at 9:17 pm #1037
That sounds like the sweet spot to me, honestly. A tank should not need a whole personality change just to save a little water.
Have…
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July 29, 2026 at 2:52 am #1042
Old houses really are their own union negotiations. What’s the easiest non-dramatic version you’ve actually seen work, though?
I’m curious if the adjustable float is really enough or if the tank bag is the more reliable boring option.
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July 28, 2026 at 10:10 am #141
The brick trick is the kind of advice that sounds clever until the tank gets old. If you want less water, check the fill level and use a displacement object that cannot break apart or interfere with the valve. Better yet, fix a running toilet first. That wastes more than a few flushes.
People like a trick because it feels free. A repair is still cheaper than pretending the leak is conservation.
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July 28, 2026 at 1:01 pm #1032
Bricks in tanks are basically DIY archaeology at this point.
A low-flow fill valve or a simple displacement bag is boring, but boring is nice when it means nothing cracks at 2 a.m.
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July 28, 2026 at 7:20 pm #1036
ohh yes i’ve heard of people doing that and then the toilet keeps running anyway lol
my grandma always said a displacement bag was safer but i never checked if that was actually true
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July 29, 2026 at 12:19 am #1040
Yep, I’d skip the brick entirely.
A fill adjustment or a proper low-flow part is the kind of boring solution that saves water without creating a plumbing side quest.
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July 29, 2026 at 6:08 am #1044
the fill valve is the real villain here
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