Originally Posted By: away
This post was automatically imported from our archived forum.
Typically, I find either a permanent marking somewhere near the seat hinges (along with the mfg name) or it will be stamped into the tank porcelain.
As far as a being a requirement, they are only required for new construction or if replaced. I don't believe you can even buy the larger ones at retail places, you have to know someone from Canada or Mexico and bring it in under the radar so to speak.
Shower heads may be stamped somewhere along the threaded section or on the face. If not then it is a crap shoot.
Even though they are marked as such, the mfg's were smart and made the flow restrictor removable in the earlier models. Rather than completely redesign and retool they just designed the restrictor to fit into their existing products. It wasn't until recently that the restrictor was required to be non-removable. I would be very cautious about claiming a shower head is low flow, especially one that is more than a few years old.
The low flow requirement for shower heads, just like commodes, is only for new construction. Also, like commodes, I don't think you can buy the high flow shower heads any longer.
Keystone Residential Inspection Services PLLC