I have a Rheem heat pump (~15 yrs. old) that has had to have the refridgerant replaced 3 times in 2 years. So we obviously have a slow leak. The HVAC company that refilled it last time (in winter) said that once the weather warmed up they could look for the leak.
Now that it's warmer I have contacted them to fix the problem. I have been given 2 options. 1. Test the system with dye to try to find the leak. 2. Assume the leak is in the line set and use Super Seal (the line set goes in between walls). Technically we have a third option of running a new line but this is a two story house and the inside part is in the attic and they said it would have to be on the outside of the house.
Both options will be a couple hundred dollars. And if we use the dye and the leak is in the line then we have to go to the super seal anyway. They have told me that on their experience they assume the leak is in the line.
The company is a friend of a friend so I'm sure everything is on the up and up. They have been very honest and upfront about the options. I just don't know what to do. Any advice?