Electrical Questions? Ask an Electrician Online.
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We are here to answer your questions and help resolve electrical problems. A question like yours requires considerable time & effort.
For instances like this we have the option of offering additional services at additional cost that we quote to you before beginning the work.
I will be glad to submit a quote for this service which you have the option to accept or not. In a case like this, I will send you the quote then if you decide not to proceed, I will opt out of the question and you owe nothing. So...look for a quote for the additional service in your email, then we will proceed from there.
Before I can submit the quote, I need additional info:
Where you mentioned 260 ft of riser conduit, the rest underground...how much is underground? Is there a specification on the type of 4 inch conduit? (Rigid, EMT, IMC)