Yes, sodium carbonate is the same for use in the pool as for use in the laundry.
From a chemical supply house.
From a chemical supply house.
Use washing machine hoses instead of plastic supply lines.
detergent is a cleaning supply which can be used for washing dishes or washing clothes.
It means to shut off the water feed to the washing machine.
For washing bricks,making cement,
20%10 percent
yes
Nearly 50 percent (of electricity)
That will depend on what you need it for:as a medication lithium carbonate is available at any pharmacy, but you need a prescriptionas a laboratory chemical lithium carbonate would be available from chemical supply houses, check your yellow pages phone directory, if you can't find a local supplier look on the internet for chemical supply houses that accept orders on their website
27%
This is unknown. Call a plumber to do a visual assessment.