
My grandmother is one of those people who never spends a dime unless she absolutely has to. She’s lived in the same house for over 40 years, and in her words, “If it still works, why replace it?”
That mindset worked fine for furniture, appliances, even her old rotary phone. But when it came to her AC line set, that philosophy nearly cost her an entire cooling system. For More Knowledge:
The First Signs Something Was Wrong
Last summer, I stopped by her place on one of those days where the heat just presses down on you. Inside, the air felt heavy, almost sticky. The thermostat was set to 72, but the house was sitting at 80.
“Must be this old system,” she sighed, fanning herself with yesterday’s newspaper.
The system wasn’t actually that old. She had upgraded the indoor and outdoor units just three years earlier. But like most homeowners, she didn’t think twice when the installer reused her existing copper line set.
The Diagnosis That Shocked Us
When the technician came out, he didn’t mince words. The reused HVAC line set was the culprit. mini split line set
The lines had years of wear—tiny leaks, refrigerant contamination, and insulation that had crumbled to nothing. It was choking the system until the compressor gave up. The only solution? Replace the compressor and, this time, the line set too.
The cost? Nearly $5,000.
I’ll never forget the look on her face—frustration, disappointment, and that sinking realization that “saving money” had backfired.
Where We Found the Solution
That’s when I stepped in. I wasn’t going to let her get burned twice. I researched, compared options, and landed on Plumbing Supply and More.
We ordered a brand-new mini split line set—quality copper, correct diameter, and proper insulation. The price was fair, the shipping was quick, and most importantly, the product was exactly what her system needed.
When it was installed, the difference was dramatic. The house cooled evenly again, her electric bill went down, and for once she admitted that replacing something “before it’s broken” actually made sense.
Why I Share This Story Of Line Set
I tell friends and neighbors this story not to scare them, but to save them from repeating the same mistake. If you’re upgrading or repairing your AC, don’t overlook the line set for your AC unit. It’s not just copper tubing—it’s the artery that keeps your system alive.
Here’s what I learned firsthand:
Old line sets are hidden liabilities – corrosion, leaks, and sludge destroy efficiency.
A new copper line set extends system life – compressors don’t get overworked.
The right supplier matters – that’s why I trust Plumbing Supply and More.
A Final Word from My Grandmother
She laughs about it now, telling people, “I thought I was saving money. Turns out I was just making my system sick.” To learn more:
It’s funny, but it’s also true. When I see her house cool and comfortable today, I know the new AC line set made all the difference. And every time someone asks for advice on AC upgrades, I always tell them what I tell her—don’t cut corners on the parts you can’t see.
Get the right line set the first time, from the right place. For us, that’s Plumbing Supply and More.