I can't figure out why mine always resets to zero if I don't use it for a while?

Its supposed to turn off, and reset to zero after a period on non use. The top reading will reset to zero, the bottom reading will not, and is cumulative.

Has anyone tried using it to measure the water used in showering? It looks like it might be able yo attach between shower wall pipe& shower head.

If you're thinking of placing in hard plumbing, I'ld forget it. For the money, lets face it. It's not of high quality nor percise. 25 gallons on it is more like 28 to 30 gallons. For what I use it for, I get-a-long just fine. Hope this helps anyone out that's interested.

Is it safe to use to monitor drinking water usage?

Safe? ABSOLUTELY... This is what we, basically, use this item for. I connect this to my motorhome as I'm filling my freshwater tank so I know how much water I'm putting into the system. TYPICALLY, I only want to carry a small amount of water while drive (say 10 gallons) and then fill up when I get to my destination. This makes it ***VERY EASY*** to know what I've put into my tank!

How do you turn it off?

The meter is based on flow only and does not have an "on-off" valve. You have to turn it off at the faucet or you could install a simple ball valve prior to the inlet of the meter and use that to control flow. It does not have an automatic "flow" shut off.

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P3 P0550 Water Meter

Product ID: 1097803

Details

Brand
SAVE A DROP
Item Weight
82 Grams
Item dimensions L x W x H
4 x 2 x 3
Material
Durable Rubber
Number of Items
2

🌿Rugged waterproof design for outdoor use

💧Measures water flow to 0.1 gal precision

📊Tracks single and total watering volumes

10.19 OMR

Duties & taxes included

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Description

💦 Water smarter, grow greener — never overwater again!

INSTANT INSIGHTS - Attach to any hose or sprinkler and get real-time data to water smarter, not harder.
ECO SMART WATERING - Optimize your garden’s health while conserving water and lowering your utility bills.
DUAL VOLUME TRACKING - Monitor both individual and cumulative water usage effortlessly on a clear LCD display.
BUILT FOR THE OUTDOORS - Durable, waterproof housing ensures reliable performance rain or shine.
PRECISION HYDRATION CONTROL - Eliminate guesswork with 0.1-gallon accuracy for every watering session.

The P3 P0550 Water Meter is a compact, durable device designed to precisely measure water flow from your hose. Featuring an easy-to-read LCD, it tracks both single-use and total watering volumes with 0.1-gallon accuracy. Its rugged, waterproof construction makes it perfect for outdoor gardening, helping you optimize water usage, protect plant health, and reduce waste.

Specifications

ASIN	B0058EOC5M
Best Sellers Rank	#54,454 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #155 in Watering Timers
Brand Name	SAVE A DROP
Customer Reviews	4.2 4.2 out of 5 stars (4,239)
Global Trade Identification Number	00751549005505
Included Components	item and manual
Item Dimensions	4 x 2 x 3 inches
Item Type Name	P3 Water Meter
Item Weight	82 Grams
Manufacturer	P3 International
Material Type	Durable Plastic, Rubber
Model	P0550
Part Number	P0550
UPC	731215322631 231894805376 115971574563 014444886281 881110016828 115970695962 172304216651 132017979847 807034919229 182682312456 805095150605 069060216066 163121122669 891208600945 168141211331 151903475485 807320370574 041114536924 680808386638 601000266443 079854871791 168141406058 086011661683 021112434248 809390037593 001910641772 172302655964 071090179969 619091188513 012304191803 2233757303…
Unit Count	2.0 Count
Warranty Description	1 year warranty.

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