Can I just let the front tires wear out and then replace the front tires only? Why or why not is it better to rotate tires regularly?
If I remember right, the mixer valve has a threaded inlet to each side. Solder a coupler to your hot/cold pipes, then screw them together. Don't be afraid to use teflon tape to insure a tight joint. And yes, there is plastic/rubber parts inside the mixing valve.
You probably have already damaged the O rings and seals in your new faucet and I would recomend that you get another one to install. All faucets normaly have a threaded connection that you can make to connect the piping to the faucet and not heat the faucet. Make your connections and soildering joints so that you dont have to heat up the facuet. Use comperssion connections if necseeary
That is certainly one strategy. I know people who do that. The idea of tire rotations is all tires will wear out evenly, all are the same age, and all are replaced at once so no tire is in worse condition than the other. Its better to have 4 fresh tires than 2 fresh ones and 2 almost worn out ones. But, it all depends on how you drive and what you can afford. I prefer rotations but there is a case to be made for replacing 2 at a time more often.
if you rotate your tires the life of the tires will last longer, in other words save you money instead of buying 2 tires more regularly and the rears will need to be replaced to just not as often so why not rotate the tires so you won't be at the shop as much and you can get all 4 done at once, plus you'll get worse gas mileage with uneven tire wear in other words don't be lazy, rotate the tires like your supposed to, some people say to rotate maybe every oil change but i do it about every 5,000 to 10,000 miles at the most also im assuming you have a front wheel drive car since you talk about just replacing the front tires when they wear out, i have a rear wheel drive so my tired wear a little faster since the front is for steering of course and the rear is for acceleration
Along with what everyone else said, having tires on the front that are much more likely to blow out than the back tires is not a good idea. A front tire blowout is much more dangerous than a rear tire blowout.
