Commercial plumbing services
This could be easily solved by calling professional plumbers offering Commercial plumbing services, as they provide help in clearing blocked sewer, CCTV drainage check up, high-pressure water jetting along with storm water drains and many other services of flawless remedies.
. Never wire funds via money transfer services/money wire services - anyone who asks you to do so is a scammer.
. Meet the seller, local transactions are the safest.
. Avoid deals involving shipping or escrow services and know that only a scammer will "guarantee" your transaction.