Winning at Craigslist (this time)

[dbm52]

Earlier this year I decided to finely replace my broken air compressor. After searching CL & the web for a decent unit i decided to try ebay. most users that sell large items usually just offer local pick up so i found a new craftsman for local pickup about a 1/2 hour from me. I won the bid for $202 dollars & to my surprise the owner had bought it for his shop but found it to small so he just hooked it up ran it once only to discover it wouldn't supply enough air for a full size shop

 

[MrSurly]

That is a win, for sure! I always find the best ebay deals are pickup only and at least four states away!

 

[Farmall450]

Earlier this year I decided to finely replace my broken air compressor. After searching CL & the web for a decent unit i decided to try ebay. most users that sell large items usually just offer local pick up so i found a new craftsman for local pickup about a 1/2 hour from me. I won the bid for $202 dollars & to my surprise the owner had bought it for his shop but found it to small so he just hooked it up ran it once only to discover it wouldn't supply enough air for a full size shop

You ****!
I agree with a previous poster, I always find deals in like New Mexico...

 

[srr]

Nice score!

 

[NUTTSGT]

You’ll be pleased to know that it is now securely secured, isolated and contained.





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All secured but it all plumbed into the shop or is that a project to come ?


Great deal btw.

 

[MrSurly]

All secured but it all plumbed into the shop or is that a project to come ?
Great deal btw.

Not plumbed yet. I await getting the inspector to bless the building and electrical permits (no plumbing/sewer permit was sought).
After he has become satisfied with those areas (I hope) then I'll likely make a few changes as funds permit.
I will likely run all copper around the shop and there will also be a buried PVC taking air back to the garage of the house. No need to run two compressors.

 

[Farmall450]

Not plumbed yet. I await getting the inspector to bless the building and electrical permits (no plumbing/sewer permit was sought).
After he has become satisfied with those areas (I hope) then I'll likely make a few changes as funds permit.
I will likely run all copper around the shop and there will also be a buried PVC taking air back to the garage of the house. No need to run two compressors.

Garage journal breaks in 3...2...1
:

 

[PT Doc]

Maybe bury something else than PVC?

 

[MrSurly]

Maybe bury something else than PVC?

Well, it's already buried (standard white PVC ) but I'm curious about your reservation.

I'm aware of OSHA's edict (prohibition in workspaces unless covered) and I won't use it for air anywhere exposed to people. Figured it was OK when buried.

Tell me your thoughts, recommendations.

EDIT: when the mud was being poured, as an afterthought I grabbed a couple of pieces of pipe that were available just as a “just in case I later need extra access”
What I grabbed to toss in beside the 3/4 conduit PVC (unassigned ) were a piece of white PVC and a bit of CPVC. I had a ditch there for the PVC already. That conduit goes by a different path to the house from the feeder ditch. It will someday carry video/alarm/Ethernet, most likely.
The two pieces of water pipe are there, I could use either for the Shop air back to the house.
There is a tiny garage area there where I work on and park a motorcycle. I also have an in-ground single-post motorcycle lift there that requires compressed air.
Is the CPVC better than the PVC in Shop-air duty?

 

[LS6 Tommy]

Copper or black pipe are not only better than both CPVC and PVC, they're the right choices...

PVC is a no-go for any compressed gas. I don't care if you're burying it. You were doing SO good up until now.

Tommy

 

[FRANKIEWHIPIT]

Grand Slam!

 

[NUTTSGT]

I had pic airlines at one time, installed before I found GJ and knew better. I replaced them with black pipe.

 

[MrSurly]

You were doing SO good up until now.



Tommy

I literally LOL.





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[58Yeoman]

I had pic airlines at one time, installed before I found GJ and knew better. I replaced them with black pipe.

Me too. Now, I have a 50' reel, nothing else.

 

[metalmagpie]

That compressor probably has reed valves and they may need replacing every few years. It's the kind that really needs its tank drained regularly and its oil changed religiously. Should last you the rest of your life.

I got a similar deal once. 5hp 80 gallon Champion vertical just a few years old, from an auto repair shop for about $500. I know how happy you are.

metalmagpie

 

[Norcal]

Do you ever get a buy so good that you almost feel guilty? It's rare for me but it happened this week. For almost a year, I've been casually looking for a deal on an air compressor for the new shop, 60 gal or so, at least 10 CFM and hoping for a deal on a used "commercial" unit rather than the big-box-store re-badged import du jour. I look at CL often and an ad popped up for a SpeedAire. The ad said it had issues, head gasket, maybe; bearing noises, not sure. The pics looked good, it was the kind of machine that should be worth repairing, so, based on their problem report, I took a chance and made a phone offer. The guy had to call 'corporate' to get approval. This is probably good for me, as the corporate folks are two time zones away and likely ready to get their guys back to work on important stuff. Couple hours he calls/says come get it. I did and I was surely surprised. Apparently this local shop had been trying to get approval to upgrade to a much larger unit, but corporate was dragging their feet.

After reporting issues with this machine, they got upgrade approval and a new monster IR compressor.

The "broken" SpeedAire was bolted to the IR's pallet, waiting with a forklift to load me up. They bought it from WW Grainger. It's three years old. It looks 100% brand new.



It is not actually broken.

At all.

It DID have a small leak due to the drain ****** being cracked.



I almost feel bad about buying this machine for 500.

I said "almost".

Model 4XA59

Other then the lack of a disconnect, looks good, although the NEC does frown on the use of flexible cord in place of permanent wiring.

 

[MrSurly]

Other then the lack of a disconnect, looks good, although the NEC does frown on the use of flexible cord in place of permanent wiring.

I think the NEC should be good on the disconnect (<50' line of sight to the breaker panel in the same room, unobstructed view and access) Art. 430(?)

A flex connection being necessary (rubber mounted machine) what would the NEC mandate?
Sealtite?
MC flex?
EMT?
The cord (which came with it) appeared adequate to my reckoning but let's get the official word; it's AWG 6-3 Type SOOW UV & water res.

The machine has no requirement for a 'Neutral' (grounded conductor). There IS a Neutral in that 4sq box.
Do I need to supply four-wire to the controller (starter) box even though it has a 240V coil?
Do I need to hard-pipe it even though it's not actually rigidly mounted?

Does S-O cord have any *allowable* permanent application?

 

[isb cornbinder]

Copper or black pipe are not only better than both CPVC and PVC, they're the right choices...

PVC is a no-go for any compressed gas. I don't care if you're burying it. You were doing SO good up until now.

Tommy

I used black iron pipe for air lines in my shop. The pipe was installed in 1990. The pipe has rusted inside and occasionally the rust bits will come out. I have installed and use PARKER air filters where necessary.
The rusty bits get into air tools and is most noticeable when blow-guns do not seal.
I usually blow some "test" air away before I direct air at my project.
Black pipe is not perfect but it is doing well enough, for me. I used larger diameter black pipe to increase my storage volume.

 

[48RON54]

No bearing noises? They just made up some problems to get an upgrade?

I could totally see that happening in a shop environment. Getting corporate to part with money is pretty hard, so I could see someone telling corporate the compressor had major problems just to get it upgraded.

 

[Trey T]

that's a really great find for $500

 

[MrSurly]

I used black iron pipe for air lines in my shop. The pipe was installed in 1990. The pipe has rusted inside and occasionally the rust bits will come out. I have installed and use PARKER air filters where necessary.
The rusty bits get into air tools and is most noticeable when blow-guns do not seal.
I usually blow some "test" air away before I direct air at my project.
Black pipe is not perfect but it is doing well enough, for me. I used larger diameter black pipe to increase my storage volume.

Well, it’s quite settled that PVC is verboten, and copper and BI are recommended. My favorite is always copper but BI is much cheaper of course. The rust becomes an issue eventually and I’m left wondering why galvanized has not been mentioned. The cost would fall in between cu and bi I would expect. Is there a GJ prohibition on galv pipe? Do I get fussed at for mentioning the stuff?


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[BFBOB]

I think the problem with galvanized is the same reason it isn't permitted for gas lines - the zinc coating eventually deteriorates and flakes off, clogging things. I've been told there's some chemical reaction with gas that accelerates the process.
black pipe rusts, but tends to make tiny particles

Just what I've heard

 

[rburke65]

You did well and I think Santa Clause came early for ya. Good for you. But you still ****!

 

[54stude]

Well, it's already buried (standard white PVC ) but I'm curious about your reservation.

I'm aware of OSHA's edict (prohibition in workspaces unless covered) and I won't use it for air anywhere exposed to people. Figured it was OK when buried.

Tell me your thoughts, recommendations.

EDIT: when the mud was being poured, as an afterthought I grabbed a couple of pieces of pipe that were available just as a “just in case I later need extra access”
What I grabbed to toss in beside the 3/4 conduit PVC (unassigned ) were a piece of white PVC and a bit of CPVC. I had a ditch there for the PVC already. That conduit goes by a different path to the house from the feeder ditch. It will someday carry video/alarm/Ethernet, most likely.
The two pieces of water pipe are there, I could use either for the Shop air back to the house.
There is a tiny garage area there where I work on and park a motorcycle. I also have an in-ground single-post motorcycle lift there that requires compressed air.
Is the CPVC better than the PVC in Shop-air duty?

Maybe you could pull a 1/2” pex air line through that pvc?

 

[MrSurly]

I don’t see that happening(!) the white pvc and CPVC just have plumbing ells, not sanitary ells. You couldn’t pull a string through them but I’m not afraid to dig again.
But, what are the recommended materials for burial air line? Black iron is out. That leaves either copper, galvanized or pex? I would actually lean toward nylon tubing which we use s good deal of at work. I’ll have to look up the specs and cost on it.


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[Norcal]

I think the NEC should be good on the disconnect (<50' line of sight to the breaker panel in the same room, unobstructed view and access) Art. 430(?)

A flex connection being necessary (rubber mounted machine) what would the NEC mandate?
Sealtite?
MC flex?
EMT?
The cord (which came with it) appeared adequate to my reckoning but let's get the official word; it's AWG 6-3 Type SOOW UV & water res.

The machine has no requirement for a 'Neutral' (grounded conductor). There IS a Neutral in that 4sq box.
Do I need to supply four-wire to the controller (starter) box even though it has a 240V coil?
Do I need to hard-pipe it even though it's not actually rigidly mounted?

Does S-O cord have any *allowable* permanent application?

Sealtite,Greenfield (metal flex), with stranded conductors works well, the SOOW could be used if a proper HP rated plug was used but that would cost more then what was paid for the compressor, pin & sleeve connectors are expensive enough to stall the heart. I have 3-60A interlocked single phase pin & sleeve receptacles that would have cost as much as the MIG welder they are being used for, interlocked receptacles have a disconnect, that has to be turned off before inserting, or removing the plug, the normal cost about $800 ea.

No need/requirement for a neutral for a 240V compressor, in most cases it's wasting money to have it.