Petes pressure drop

from previous post:

quote from Pete:
Duane,
Ok, now you want me to go out and get a reserve tank too and I'm sure you would recommend an ASME rated one too!   Running some pressure drop calculations, it looks like I could use the 3/8" hose and see about a 2 PSI drop. I could live with that but, the CFM is bad. Using a 13CFM, die grinder, looks like I'd be down there all day waiting for the reserve tank to refill.

Regarding the electric, it was run for lighting back in the 30's when electric was run to the house. (in laws house). A 10 amp load on the 12 gauge is about a 30 volt drop and that won't run the compressor.

I'm just going to take my Dremel down there!     

BTW, I'm very familiar with reserve air tanks having laid out 600 HP of sequenced compressors in a 200.000 sq. ft. blow molding plastic injection plant. We installed 3, one in each corner of the plant. It works!"

Pete, Check your figures. I see Zero drop with no cfm flow
No on the ASME, I have used 100 gallon propane tanks cleaned and converted(maybe not Kosher but have done it)
30 volt drop at what temp??

Do you have plans to run any more power down to the boat house??   Would imagine that you have some sort of GFCI type protection there already. If the existing wire was run in the '30's what kind of insulation is it?? Got to be some sort of fabric. At least back then they did not use aluminum wire. With the advent of LED"s you can get by with a lot less power needed. That and solar will help you. We won't need to about it but just think what will be available in 30 more years or so.

Keepin' it original!

Seems like a safe place to store wood boats.

No kidding! That fabric insulation must not provide much protection. Ever seen "Up in Smoke"? Bring marshmellows.

Glass fuses??

My parents were originally, the little round ones that screw in like a lightbulb. 30 years ago they had an addition added and the panel itself got upgraded to breakers but not the original house wiring, Didn't have to do that at the time, today they probably would have had to rip out all the Knob and Tube stuff and rewire.

mark c wrote: today they probably would have had to rip out all the Knob and Tube stuff and rewire.

Still not required.

DVskier wrote:    I have a 200A panel and a 100A sub panel. .

David,
I'm curious about the sub panel. What is it for? The typical 200 amp panel has 40 breaker spaces. Wasn't that enough or did the electrical contractor put in a smaller 200 amp main with less spaces?

Wow, realtors and inspectors make a big deal about it when it comes time to sell a home. Now when my mother goes to sell the house i can tell the buyers tough, no discount for the knob and tube. Fix it yourself if you don't like it.

Hey Pete,

I have a ton of circuits. The 100 A panel is used for terrace level, outside lighting, 120 vac auxiliary circuits and GFCI circuits that go to boat dock, lift, dock lights and pier circuits.

Overkill yes but the electrician did a first class job. It wasn't cheap but no problems since I moved in July 2003.

We have some spectacular electrical storms here and I made sure all circuits measure less than 0.1 vac between neutral and ground.