I got freaked out pretty badly in the open plan review meeting over the code-required water service upgrade from 1 inch to 1 ½ inch, mainly because of the additional $10k to $15k price tag.
Once I got over the initial shock, I asked the plumbing reviewer what options I would have if I didn’t want to upgrade. Asking doesn’t hurt, right? To my surprise, I was presented with the following option (I paraphrase):
“If you can get a code variance letter from the commissioner of the Department of Water Management (DWM) saying that they are OK with the existing 1 inch water service, then we will be OK with it.”
I felt much better already, even though I had no clue to what my chances were to actually get that code variance.
The next logical step was to get on the phone with the plumbing inspectors at the DWM to present my case. I explained that we have applied for a green permit, that we are rehabilitating a three unit building and that we have plans for exceptional water management with all the low flow fixtures.
I was delighted to notice that the inspector was actually willing to evaluate if the 1 inch service line would suffice for the project. He asked for the plans and product information on all fixtures, which I e-mailed him right away.
Based on this information, the plumbing inspector added up all fixtures and developed a worst-case scenario. It is basically a calculation of how many gallons per minute (gpm) are needed at peak use and whether the existing 1 inch water service can deliver that amount.
More good news! It appears that the existing 1 inch service must do the job, because I was asked to submit a formal letter in which I applied for the variance. My case was presented to the commissioner and I received the variance approval shortly thereafter.
I took the letter back into another open plan review meeting, in which I received the missing final sign-off for the plumbing. All plans and documents went back to our green permit project manager who issued the permit a couple of days later. It was time to celebrate – and we did!
The water service issue added another two week delay to the green permit process and made me jump through a few more hoops (thank God I am somewhat fit!). It also saved us $10k to $15k, which we had not included in the budget. Plus, the green permit means we had no permit fees. Not such a bad deal after all!


