I got the following Kohler hand-shower in Christmas to replace a generic made-in-China cheapo hand-shower.
While this Kohler product is mainly plastic, the whole thing feels reasonably well-made.
One characteristic I really like is that, during the selection of spray pattern settings, there is an audible metallic click from some sort of ball-lock mechanism.
One of the reasons I selected this product is the fact that it is a low-flow water-saving shower. It is advertised as 2.0 G/min., or 7.6 L/min. on average. Upon installation, I am surprised this feature is actually a hindrance. The flow is simply too low for my instantaneous gas water heater to reliably function.
I did a general search on this issue, and found that the only surefire way to resolve this issue is to remove the flow-limiter built into the hand-shower.
As always, I tried my best to research on this before actually attempting the removal. Apparently, there are mainly 3 types of flow-limiter:
Time to look at mine. It's easily identifiable at the inlet of the hand-shower.
I used a dental-pick to remove first the retaining ring and then the actual flow-limiter.
It seems this is the turbine design, with reverse-flow prevention.
This is complete disassembly, FYI.
Flow-rate is significantly higher now.
