Using corrosive chemicals to dissolve a clog is like throwing a grenade down a gopher hole. Instead, Wroblewski recommends flushing your drains weekly with a half cup of baking soda and one cup of vinegar. Let it fizz in the drain for ten minutes, then pour in four cups of boiling water. Find out about the plumbing nightmares that will make you cringe.
I used Go Green Express Home Services for a minor plastic pipe repair under my kitchen sink...The worker did a great job fixing this minor pipe plastic pipe repair( my original pipe was too short and he needed to extended the pipe and then reconnect). It took him less than 10 minutes to fix. I was first quoted $125 +tax but when the worker went to his truck and spoke to whoever he spoke to at the office, the price rose to $155.10 +tax for a total of $167.10...I thought that was a little too high. Will I use this company again, I Don't Know. It would be helpful if they would have a set price list for jobs (minor repairs, Major repairs etc...), then you as the consumer can see beforehand what the cost maybe and work from there with the company. Minor repairs, Major repairs this company should at least have a set-price list. ..The worker was great and efficient and did a good job on the repair but their prices are a bit costly. And yes, I did write this in their review.
Most plumbers wont mess with the septic tank. We deal mostly with components inside the house. Did you have a vent pipe in the yard (often looks like a candy cane made of PVC) before the repair but not after? If all he did was replace the line it shouldn't cause a smell inside the house. All plumbing fixtures inside the house should have properly functioning traps. Those traps would create and maintain a water seal against the sewer gases. You should have at least one vent through the roof to equalize pressures within the drainage system. This prevents positive pressures within the system (caused by fixtures discharging into the lines, ie toilet flush) from pushing gas out through the traps, and negative pressures (the waste in line will pull air behind it like your finger over the end of a straw) from sucking water out of the traps.