Repair or replace??

Bryanpark2 wrote:
30 miles from our destination my TPMS indicated low pressure. Indeed it was. Had gone from 65psi this morning to 52 psi after 200 miles. Bought all four Goodyear Marathon ST225/75/R15 2 months ago. All codes indicate they were made in late 2015. I inflated back to 65psi and made it to the campground but it still lost 2 psi in that 30 miles. What to do with slow leaking tire. Can someone come and repair or is a new tire necessary. I have about 4 days before return trip. By the way we have traveled a total of 1800 miles the past two weeks.

Thanks in advance for the advice.

George