Posts: 1,503
Threads: 104
Joined: Oct 2015
Reputation:
0
OK to leave filled, but it should be drained of water that collects from time to time -- i do mine once a year. As to pressure for tires etc, around 50% more than you intend to fill to should give a good, yet safer result.
Posts: 31,861
Threads: 708
Joined: Jun 2024
Reputation:
0
Agree about bleeding the water condensation. It might not collect much water if it is not used in a moist/humid area. I would start with a setting about 20 psi over whatever you are trying to inflate until you get comfortable with it.
Road bike tires fill fast. I know someone that blew out a tire in a few seconds when a gas station set their air at 150 psig.
Edit: to be safe, start out at 10 psi over whatever you are trying to fill, so 20 psi on the tank to fill a basketball with a target pressure of 8 to 9 psi.
Posts: 4,090
Threads: 1,161
Joined: Mar 2021
Reputation:
0
Thanks for all the info! I'm very excited to give it a try.
Posts: 26,011
Threads: 2,901
Joined: May 2025
Reputation:
0
Have you tried spinning bearings with it yet?
:-)
From what I'm told, this is dangerous. Make sure you've got a full face shield and other protective gear on if you try this.
Posts: 11,894
Threads: 520
Joined: Jan 2021
Reputation:
0
I'll be the decenter on blowing out the tank - I clear it after every use, and yes there is moisture every time.
It may be overkill but why leave it to chance ? It is just good maintenance practice to me.
My smaller everyday compressor (a Porter Cable pancake) just takes a minute or two to fully fill.
The big compressor has a 20 gallon tank and is 25+ years old and not a speck of rust in the water
when it gets cleared. If you are planning on using it with air tools it's not worth risking damage
to those either IMHO
The compressor in my old darkroom sat in a remote utility room where the air handling, water filters, etc ...
and the compressed air was piped to various locations (it fed print stations and processing & slide mounting equipment)
I installed an auto valve on it which cleared the tank every 24 hours - never had to think about it which was nice
because it got used 8-10 hrs per day.
Posts: 50,838
Threads: 670
Joined: Mar 2024
Do not trust the regulator gauge to deliver an exact pressure, especially 8 pounds for a basketball or less for kids toys and pool toys.
You should be able to dial your pressure down to be safe and get used to the amounts of air it can deliver.
I have a safety blow gun that directs a good portion of air to the side , with a ball needle attached that is a lot safer for even toys like beach balls that pop real easy.
Get a good hand held pressure gauge to test and give short burst of air from the compressor. Especialy even with bike tires and riding mower tires.
Posts: 487
Threads: 94
Joined: Aug 2016
Reputation:
0
I've got an emglo twin tank compressor that I purchased for my cabinet shop 15 years ago. I set the gauge on it at 100psi when I purchased it and haven't changed it since then. I've used it with nail guns of all types. Inflated basket balls, footballs, auto and truck tires and with an air nozzle on it to blow the dust out of countless computers with nary a problem.
If you use the compressor frequently, drain the condensation off the tank(s) frequently, i.e.- weekly. If you seldom use the compressor then drain the tank of condensation after using it.
It's not rocket science.