This seems to be the time of the year where we are meeting cowboys in all the repair and construction work that has been needed.
One of the front tires picked up some glass three weeks ago. Its pressure was reading 18 psi when it should have been 33 psi. We went have the tires checked, the assistant pulled out a piece of glass. I could hear the loss of tire pressure sound. He increased the hole size where the glass had been using a sharp instrument and put five tire plugs into each of the main holes. In other words there were supposedly three pieces of glass creating three separate holes. I couldn't exactly see what he was doing but we are now at where the tire is (see patch up in three places in the below image).
Is this situation salvageable and could we get the tire repaired properly from the inside? We have done this in the past without problems but never went through a tire plug 'repair' from the outside.
The tires are all Yokohama Geolander G95 225/55 R17.
Many thanks for any advice.