Tenants demand a professional plumber after DIY JOB

[Maugno M.]

Recently, one of my mobile homes has had several plumbing issues. 1st pipe burst underneath. I fixed it quick with a Sharkbite T. Then a line on the water heater that goes to the PEX also busted. I sent my dad over there and he just replaced the pipe and g2g. This weekend i get a call that the pipe had busted again ! I go there the next day and replace and fix it. Nothing to it, just have to have the tools and anyone can do it. The tenant tells me i need to get a plumber to fix it right. I told him the plumber would do the same thing i did.
He tells me that i need to hire a plumber and this and that.Because if his stuff messes up with a water leak, (Tv/PS4) ima pay for it etc. That got me angry as hell.  I told him i was not liable for any of his things in the house if damage occurred. My lease has an indemnification clause.Told him i wasnt liable at all for any of the things inside. I told him he needed to get Renters Insurance if he was going that route. I told him i do my own repairs and at my own discretion, decide if i need to hire anyone. I could tell he was upset, but he just said ok.He added that i was being "negligent" I told him negligent would be if i didn't fix it. I ended up calling my plumber(Professional Plumber) who had just done a complete re-piping for me on a Foreclosure i bought. After going over some details with him, i mentioned i had turned up the water heater to maximum level because they had complained that the water wasn't hot long enough. He instructed me to turn that to the middle. It's Summer now basically and Water heater doesn't need to work as hard. To call him if it happens again after i turn the knobs. The renter fussed again about water not being hot enough which is why i had turned it up in the first place. Told him that's just the way it is.

This is actually my fam bam. My cousin and her husband i rent to. I helped them out by not charging them a deposit and gave them a better deal on the monthly rent. They are on a MTM lease. So neither I or them are obligated to stay. They have been paying me on time every month which is good though.

Any advice on this ? I cant let tenants dictate how i run my business.