<human>: Give me the gist of the text in a nutshell

My girlfriend and I moved into a house in August.  3 months later our toilet, shower, bathroom and kitchen sinks, and washing machine were backed up and unusable (we even had sewage back up into our bathtub and kitchen sink).  We told the property managers, and they sent a plumber out 2 days later (!).  He went under the house and said the plumbing was very outdated (the house was built in the 40s) and it would be a major repair.  It took 2 more days for us to be able to use our plumbing.

Fast forward to Friday April 15 and the toilet, shower, and washing machine are backed up AGAIN with the toilet backing up into the shower.  I call the property managers again, and they send the plumber out that day.  He clears the blockage but says that a pipe has burst on the side of the house and that once again it will be a major repair.  Unfortunately everything backed up again as soon as he left.  I called again a few days later and talked to our maintenance supervisor, who said she would send the plumber out again to unblock all the plumbing.  He unblocked it again, but this literally just emptied out what was currently backed up; it didn't keep all the plumbing from immediately backing up again after it was emptied.

It's now been a week and a half, and our property managers still haven't really done anything to fix our plumbing issues.  We still have the toilet backing up into the bathtub.  We can't use the washing machine.  We can't do too many dishes since the water from the kitchen sink just backs up into the shower.  Is there any recourse for us in this situation?  Can we get some sort of credit for next month's rent?
<bot>: We've been unable to use our toilet and shower for a week and a half because our property managers are slow to make repairs.  Is there any recourse for us?