All new Registrations are manually reviewed and approved, so a short delay after registration may occur before your account becomes active.
Made some plumbing calculators for my buddy - thought you guys might want them too - 100% free
My friend been plumbing for like 6 years and I do web stuff. Got tired of watching him struggle with calculations on jobs - dude would be there with his phone calculator trying to figure out pipe sizing while the customer's waiting.
So I made him a bunch of calculators. Took me a few hours but whatever, he buys the beers usually.
Here's what I built:
Pipe sizing calculator
Water flow rate calculator
Friction loss calculator
Water pressure drop calculator
Pipe volume & fill time calculator
Expansion tank sizing calculator
Water heater sizing calculator
Fixture unit load calculator
Drainage slope calculator
Gas line sizing calculator
Backflow preventer sizing calculator
Septic system sizing calculator
Sump pump sizing calculator
Hot water recirculation calculator
Pipe insulation heat loss calculator
Tankless water heater flow rate calculator
BTU heating load calculator
Grease trap sizing calculator
Everything's free, no signup bullshit, works on your phone. I don't collect any personal data.
He been using them for a couple months now and says they save him time. Other guys on his crew started using them too. Figure if it helps him maybe it'll help some of you.
link: https://plumbcalc.vercel.app/
I'm running this on cheap hosting right now so if it gets hammered I might need to upgrade, but we'll see. If anyone knows other places where plumbers hang out online let me know - trying to get feedback from people who actually know what they're doing.
What other stuff do you find yourself calculating over and over? I might add more if there's interest.
REMEMBER - IT'S NOT PERFECT BUT IT'S FREE 
Comments
Put a demo table in front of your local Home Depot.
You can reliably catch tradespeople buying tools and materials.
@plumberg anything of value to you?
pretty cool. one of my greatest accomplishments in life is laying pipe
Plumbing’s just water lego, innit?
Yup
Cannot have more calculators
This is nice work @cenciak
This is when you convert it to an app, publish it, and make money.
I like the part of creating an app.
But the last part to make money ...
This has become such an influencer based idea. Have a hobby turn it to a business. I remember the good ol' days when it was fun to build things without having any ulterior motive.
@void, nothing against your suggestion. Op, sure go for generating some revenue if you want or keep it free
ok i guess you hate making a few $7...
Thank u
Just in case AI took our jobs
blembim plumber career contingency plan was not in my 2025 bingo but honestly im all for it
Anything to keep 7$ vps alive
so basically a bandwith calculator
but for laying pipe
this is spam, right ?
That was my first thought too. Guy's just trying to advertise his site.
normally I can tell the responders are f@cking with the spammer but this time who is getting over on who
I have my feet pics for this on LeOF
@Blembim is such a cunty diva he'd absolutely slay being a plumber
No spoil plz
Hello, can you please add this feature?
I have no idea LET turned into Product Hunt or Show HN now.
On a more serious note, it's pretty cool. Would be nice to have dark theme and search tool like IT-Tools.
Electron is pretty bloated. Wouldn't it be better to just host it on Github? Things are static though? You can even grab a random yearly VPS here and proxy it through CF.
Searching "plumber forum" gives a lot of active places.
At least it's interesting spam.
Hmmm...
>
To each his own. The number of thanks this op got has me scratching my head but I'm obviously in the minority. Ya ain't fooling me but carry on
LEB article about this fraudulent plumber coming?
We have slow news days...but I'm not sure it ever gets that slow.