If after using a plunger and a plumbers snake your trustworthy drain leak repair is still blocked then it's time to summon your local emergency plumbing services to take over.
Furthermore, concrete and gunite is porous, therefore providing small areas for algae and bacteria to grow. In addition, it can easily crack and chip with the change of the temperature and weather conditions, providing even more areas for algae and bacteria to grow. This is why concrete and gunite pools require the most maintenance of the three types of pools, costing $100 or more a month to maintain. It is also rough on the kids feet, and because kids will stay in the pool for extended length's of time makes this extremely damaging to the skin.
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.
If you're working with several people, it would be good to take different sections in wetting, scrubbing and rinsing to complete the whole acid wash pool maintenance faster. Make sure you get the pool completely covered. Check to ensure all of the walls and the floor are completely acid-free.
Fiberglass pools never require draining for cleaning, which is a huge chore. In addition, to clean the fiberglass surface, all you need to do is vacuum the bottom of the pool, which takes only 10-15 minutes a week. At first you might think that concrete/gunite pools are the most stable however fiberglass pools can flex about two feet without sustaining any damage garbage disposal and can safely withstand more external pressure than concrete/gunite pools.
Follow all the safety measures that are mentioned by the manufacture as mistakes can be costly. Always turn off your regulator and keep your stove unplugged. Be sure to test the entire line for any gas leaks. Use full proof plumbing procedures for easy maintenance and repair. Now, you can buy lpg gas pipe fittings of the highest quality via the internet.
The bottom line is: You and your plumber need to decide if you truly have an emergency plumbing problem. If the problem is serious and you really can't delay getting it fixed, then by all means have the work done as quickly as possible. It will probably be cheaper in the long run to delay repair on a plumbing problem that is "livable" for the time being. You will need to weigh your options and discuss them with your plumber after he has evaluated your unique situation.