Observed arrival · 2026-09-26
A plumbing calculator that shows its work
A paid calculator turns water-supply fixture counts into demand estimates and minimum copper pipe sizes, with an optional pressure check.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Plumbers and plumbing software or AI developers
- Worth noticing
- Its example spans an 8-FU bathroom-and-kitchen case and a 12-apartment run with a pressure-governing flag.
Field notes
The listed fixture categories distinguish public and private use, flush valves and flush tanks, and continuous demand such as irrigation or equipment. Optional pressure inputs include street psi, rise, developed length, meter, and the minimum pressure fixtures need. Results are described as printable and saved with a version, timestamp, sources, and disclaimer.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
◎NicheUnusually specific use
One card from the complete issue