Plumbers are a breed apart. You would think they use gold for soldering your pipes with the prices they charge. My grandfather was a plumber and I trustworthy drain leak repair was on the truck with him at nine years old. A plumber may or may not give you a free estimate. With a little digging, it can be done. Just give them the work if indeed you do buy the house.
Ask how long they have been in the business - This is a very important question to ask your tradesman as you would know how much experience he or she has. You could ask for pictures of previous work, user reviews and qualifications. Ask if he has received and certificate and awards from trade bodies or plumbing bodies.
It would be good to have a couple of people around while the process is being done just in case there are accidents since acid is a very local water heater repair service hazardous substance.
This is simple, just boil water on the stove, pour and run this hot water on your kitchen sink before you plunge. Do this repeatedly until you unclog the sink.
Even if you have the money sitting in the bank or you plan to get it from a commercial lender, asking this question may result in some revealing information. If a builder provides financing it means water leak that they have been around long enough to build credit and a good reputation with the banks. It is advantageous to have options for financing the construction of your pool. Another benefit of financing your pool is that in-ground pool construction is considered a home improvement and the interest payment on your loan is tax deductible.
Purchasing a pool can be a scary experience, especially for those first timers who haven't been through the process. There are a myriad of items to consider... pool type, maintenance, warranties, contracts, liability, plumbing, landscaping, electricity, drainage, restrictions, accessories, and so on. It's no wonder many pool buyers make mistakes that end up costing them hundreds, even thousands, of dollars.
Cheap is not always best, remember this. Quality is the name of the game and if it cost a couple dollars more to ensure that you are going to get that, then that is what you should do.