normel, your observations and understanding of the present set up seems accurate. The remote distribution panel between the meter and house used to be a 60a cartridge fused motor safety switch. After identifying the wires from the safety switch to the house as being rated for only 30a each, I replaced it with a SquareD 100a load distribution center (HOM612L100RB), in which I installed the two 30a double pole breakers, one for each feeder (the safety switch was ruined as explained earlier). At the time, it seemed to be the safest quick-fix solution to get the power back on inside the house. (These two breakers are the disconnects for the individual feeders to the house that I wrote of earlier, manchild.) I figured that if the load on either one these two feeders were to exceed their 30a capacity, the respective breaker would be tripped at the remote panel, thereby preventing a potential fire/shock hazard due overload. Since the single service feeder from the meter box to the remote panel between the meter and the house is not rated for 100 amps, could I temporarily improve this situation by replacing the 100a breaker at the meter with a 60a breaker? I think that the #4 AL is supposed to be able to safely carry 65 amps. I have no idea how to go about relocating the replacement for the Zinsco panel outside of the laundry room. (I may have caused some confusion by previously calling the laundry room a washroom. Sorry about that.) Is there any approved method of extending the branch circuit wires so that the panel could be relocated, or is it okay to have a panel box in a laundry room? Thanks again guys, for trying to help me out with this challenging problem.

Lou, I am impressed. Sounds like you have everything covered. I can't find anything wrong with your plan. The only thing is the bond wire does not have to be 18" deep in a trench. It literally can be on the ground. I usually try and get it a few inches under the surface since typically it is well away from any traffic areas. If it is in a traffic area then several inches down would be a good idea.

"The NEUTRAL bar is only legal in certain specific instances. Otherwise, even though it is ultimately grounded, it is not legal to provide equipment grounding connections." To use your own words, you are "wrong". Unless there is a separate ground bar in the panel that is properly connected to the neutral bar with a proper sized bonding jumper, it is the ONLY place in the panel to land a egc. THE ONLY PLACE. Do you get it now? The entire reason to bond the neutral to the ground rod and water line (within 10' from wher it enters the building) is to provide a path for fault current back to the neutral (xo in a transformer, or the "bullseye" as some refer to it) So you are saying that in the situation of the OP, equipment grounding conductors ARE NOT to be ran to the neutral bar in the panel? That's quite amusing to me. If one was to run a new 12-2 nm cable for a new circuit would you then just NOT land the egc of that nm cable in the panel on the neutral bar which is bonded to the ground rod and water line? What then would you do with it? Think about it. Of course you would land it on the neutral bar in the panel. That is where it goes, of course if there was a ground bar secured to the panel tub and bonded to the neutral bar then all grounds should be on the ground bar and all neutrals on the neutral bar and there shall be only one point of connection between them in the panel, by a properly sized bonding jumper. But thanks for once again trying to make be look bad for some reason, just to make yourself feel smarter I guess. "Your subsequent response was incorrect and unsafe." Sorry, you're wrong again. My ingormation is just different than yours, and in compliance with the NEC. Man you are quite the "high and mighty" type aren't you? I'm done with this thread because I actually have more important things to tend to than trying to calm an electrical egomaniac. Go ahead and cut others down to your hearts content but I'll not give you the satisfaction of wasting any more of my time. Good luck to the OP.

"On the building" is precisely where Joey's electricians are proposing putting the conduit. That is the only thing pertinent to this conversation. The circuit is not going to a hot tub in the middle of the yard, but a bathtub on the second floor. In my experience, the reason EMT is not allowed between the disconnect ON the house and a hot tub in the middle of the yard is that it is only allowed on or above grade....so the electrician puts it on top of the ground, and someone trips on it and bends it. Then the homeowner buries it in 2" of dirt, etc, violating codes. Any other conduit is either stronger, or able to be buried, so EMT is just the wrong/worst choice if it can't be attached to and supported by the building. MC would have to be a type rated for wet locations where applicable. Probably not the same stuff you are thinking of.