So I went to the supply house and got a pump , fittings and clamps .

As to what niche to get into, it's all about supply and demand.

Especially 1 bed 1 bath, in a lot of markets there is a ton of demand and not enough supply so you will see a lot of communities being built with majority 1x1s. 

Each of these sub sectors has its own pros/cons and supply/demand drivers. 

Increasing job numbers, net positive migration, growing wages, growing rents, and modestly increasing housing supply.

Main issues are electrical...service panel, cloth wiring, meter box size and plumbing...galvanized supply lines, caste iron drains might be towards end of life span, shut off and bath valves.

I already had a good bit of the supplies and There’s $110 rebate on its way back to me as we speak.

Payroll financing, supply chain financing, leveraged acquisition financing, commercial paper.....EVERYTHING froze up in an instant.

I'm not sure if you have tried the home depot method, but visit home depot in the morning when they open and get information of contractors supplying there.

All he did was the demo and bought some of the supplies.