Posting here for traffic, but if it would be better somewhere else then I'm happy for it to be moved.
I moved into my house a yeR ago with DH and DCs, we loved the house and area so were willing to pay the extra rent to move here. Since we moved in though there has been problems with the drains, plumbing and kitchen, and we've had enough.
The outside drains first exploded in March. The LL was informed by the drainage firm he hired to come and clear it, that it is a very old system and he needs to replace it, or it will carry on happening. He didn't do this, and it happened again in June, again in Sept. Each time, he just arranged the drainage firm to clear the waste overflow, not fix the damn problem.
And now it has happened Again.
I should point out, by drains exploding and overflowing, I mean that every time someone uses the toilet, it isn't going where it should- the outside pipe isn't aligned with the bathroom, so the pressure drop means it isn't going where it should.
And eventually, the pressure means the back garden overflows. You can guess the rest.
I'm really embarrassed. We keep our house clean and tidy, and this is a massive upset. We contacted him again when this happened (last week), and now he is just not responding to our calls. We can't go out into the back garden, DCs can't play out there, and we can't even risk opening windows at the back of the house.
Aibu to NOT want my back garden to be a fucking toilet every few months?
Obviously not, but I am just wondering if he is actually breaking the law by not fixing a problem that is quite obviously a health hazard?
We're tempted not to pay rent this month- he would soon pick up the phone to us then 
Thank you for any thoughts on this, I feel bloody ill 