What you have is a portable or carry tank. It has a tire like valve to fill the tank from another compressor. The valve you are talking about with the ring in it is for letting out pressure should you fill it with too much pressure.
Most safety levels are around 125 PSI. In the event someone like me has messed with their compressor factory settings, the pressure valve will pop open at a predetermined setting. If you don't like the setting, you can replace it with higher or lower pressures. the valve backs right out with a wrench and a new one goes right back in place. Chances of you needing to drain it are fairly remote since you aren't compressing air to pressurize the tank. You are taking already compressed air from one tank into the smaller one. Now if your big tank is full of water there is a chance it will get in the hose and then it can travel into the other tank. You can tell by shaking the small tank and you'll hear if there is water inside. Holding the pop off valve open while the tank is on end will certainly drain the tank by forcing moisture out under pressure. But do you want to stand there and hold the valve open having oily water spray on your hand under pressure and listen to all the noise it makes as well? Quite often they don't have a drain on the smaller tanks, but I'd rather take that valve out and turn the tank on end with a larger opening for anything to drain out. ----- Original Message ----- From: robert moore To: [email protected] Sent: Sunday, December 02, 2007 8:58 PM Subject: RE: [BlindHandyMan] Compressor question: to blow or no. No It does not run continuaslly. It runs for a few minutes and shuts off for a while and continues to cicle that way. When it shuts off I can hear it bleeding down. I guess what I should have said in my earlier post is that It takes about 10 minutes for it to bleed off completely after I unplug it. What I do is plug it in when I need to use it and unplug it when I am done other wise it will cicle on and off every 5 to 10 minutes. Those times are just a wild guess. I have never really paid that close attention to how long it cicles on and off. One more question. I have a small tank that you can fill and then carry it to where ever you need to fill a tire. It looks to be about a 3 or 4 gallon tank. I only paid about 15 dollars for it at the local home center. This unit does not seem to have a valve for draining off watter that condenses in the tank. It does however have a spring loaded valve up by where you fill it. It has a ring that you can pull on to let out air. What is that valve for and could you turn it upside down and drain out the water that way or do these units not have a problem with water collecting in the tank. Hope my question is clear. Robert -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] Behalf Of Dale Leavens Sent: Sunday, December 02, 2007 5:02 PM To: [email protected] Subject: Re: [BlindHandyMan] Compressor question: to blow or no. Does the motor run continuously? It may be that the compressor has a safety which regulates the top pressure rather than shut off the motor? Dale Leavens, Cochrane Ontario Canada [EMAIL PROTECTED] <mailto:DLeavens%40puc.net> Skype DaleLeavens Come and meet Aurora, Nakita and Nanook at our polar bear habitat. ----- Original Message ----- From: robert moore To: [email protected] <mailto:blindhandyman%40yahoogroups.com> Sent: Sunday, December 02, 2007 4:59 PM Subject: RE: [BlindHandyMan] Compressor question: to blow or no. This thread causes me to ponder. I have an old compressor it has an electric motor that turns the piston in the actual compressor it looks kind of like a small gas powered 4 stroke engine, it is driven by a belt. As I said this thing is old, what I mean is that it is very very old. My question is this. Is it normal for some of the older units to bleed off by them selves with in about 10 minutes. Or do I have a worn out release valve or is there an adjustment that I need to make some where? Out side of that it works great. I have no problem with the way it performs. -----Original Message----- From: [email protected] <mailto:blindhandyman%40yahoogroups.com> [mailto: [email protected] <mailto:blindhandyman%40yahoogroups.com> ]On Behalf Of Dale Leavens Sent: Sunday, December 02, 2007 12:50 PM To: [email protected] <mailto:blindhandyman%40yahoogroups.com> Subject: Re: [BlindHandyMan] Compressor question: to blow or no. I almost never blow my tank off though I do occasionally open the drain at the bottom and drip any water out of it. Some time ago I turned it over and poured an ounce or two of oil into the tank which settles to the bottom, My thinking was that since oil floats on water it would keep the lower part of the tank more or less oiled and possibly protected. The other thing is that I often forget to turn the compressor off after a week-end it may cycle every 6 or 8 hours for a couple of days when I am at work, I reason that I may need it some evening and the pressure will be there. My tank is 22 Imperial gallons I think so it takes a little time to charge at start-up. Now I am not recommending this procedure. My compressor doesn't get a lot of work either, I have had it probably 7 years now maybe 8. Sometimes when I shut it off I blow it off too but often I forget. So far it serves me well. Dale Leavens, Cochrane Ontario Canada [EMAIL PROTECTED] <mailto:DLeavens%40puc.net> <mailto:DLeavens%40puc.net> Skype DaleLeavens Come and meet Aurora, Nakita and Nanook at our polar bear habitat. ----- Original Message ----- From: William Stephan To: [email protected] <mailto:blindhandyman%40yahoogroups.com> <mailto:blindhandyman%40yahoogroups.com> Sent: Sunday, December 02, 2007 12:36 PM Subject: [BlindHandyMan] Compressor question: to blow or no. All: The operating instructions that came with my cheap compressor advise that you bleed off the tank if you're not going to be using air for over an hour. I understand this is to prevent the tank from rusting due to the condensation in compressed air. I know of some guys to do this religiously, and others who don't really worry about it, and I've never heard of rust being a problem, though that's not to say that it isn't or couldn't be. So, what do you folks think about this? Do you all blow out your tank regularly? This just seems like a real waist of energy to me, and I'd a lot rather keep air up so I can use it when I need to rather than have to fill the tank every time. Are some tanks made of metal that doesn't rust, and mine is not? Any thoughts will be appreciated. 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