Shower Head Flow Restrictors - Size Data ?
 

Looking at the old problem with de-limiting the water flow in a modern
shower head. The new one I bought, a Delta Supreme, has a standard five
foot hose with an anti-siphon valve at the top end and a plastic insert at
the handheld end. The hose appears to be 5/16" ID, the anti-siphon end has
a set of eight 5/64" holes, and the plastic insert is 1/4" ID. By my
calculations, the hose has an area of 0.077 in2, the anti-siphon piece has a
total open area of 0.038 in2, and the 1/4 inch fitting has an open area of
0.049 in2.

At a water pressure of about 70 psig, should I assume that the 1/4 inch
restriction (or the even smaller multi-hole restriction) will limit the
water flow to below 2.5 gpm, or should I be looking for something else even
smaller (more restrictive)? Just thought I'd ask before I started drilling.

- Magnusfarce

Shower Head Flow Restrictors - Size Data ?
 

Magnusfarce wrote:
Looking at the old problem with de-limiting the water flow in a modern
shower head. The new one I bought, a Delta Supreme, has a standard
five foot hose with an anti-siphon valve at the top end and a plastic
insert at the handheld end. The hose appears to be 5/16" ID, the
anti-siphon end has a set of eight 5/64" holes, and the plastic
insert is 1/4" ID. By my calculations, the hose has an area of 0.077
in2, the anti-siphon piece has a total open area of 0.038 in2, and
the 1/4 inch fitting has an open area of 0.049 in2.

At a water pressure of about 70 psig, should I assume that the 1/4
inch restriction (or the even smaller multi-hole restriction) will
limit the water flow to below 2.5 gpm, or should I be looking for
something else even smaller (more restrictive)? Just thought I'd ask
before I started drilling.
- Magnusfarce

There are too many variables to come with with an exact number. I just
drilled mine out to what seemed right and it worked perfect. Not a great
deal more, but just enough to work well.

--
Joseph Meehan

Dia 's Muire duit

Shower Head Flow Restrictors - Size Data ?
 

On Mar 27, 4:51�pm, "Joseph Meehan"
wrote:
Magnusfarce wrote:
Looking at the old problem with de-limiting the water flow in a modern
shower head. *The new one I bought, a Delta Supreme, has a standard
five foot hose with an anti-siphon valve at the top end and a plastic
insert at the handheld end. *The hose appears to be 5/16" ID, the
anti-siphon end has a set of eight 5/64" holes, and the plastic
insert is 1/4" ID. *By my calculations, the hose has an area of 0.077
in2, the anti-siphon piece has a total open area of 0.038 in2, and
the 1/4 inch fitting has an open area of 0.049 in2.

At a water pressure of about 70 psig, should I assume that the 1/4
inch restriction (or the even smaller multi-hole restriction) will
limit the water flow to below 2.5 gpm, or should I be looking for
something else even smaller (more restrictive)? *Just thought I'd ask
before I started drilling.
*- Magnusfarce

* * There are too many variables to come with with an exact number. *I just
drilled mine out to what seemed right and it worked perfect. *Not a great
deal more, but just enough to work well.

--
Joseph Meehan

*Dia 's Muire duit- Hide quoted text -

- Show quoted text -

all the ones I have seen have a easily removable plastic insert, thats
easily pulled out. to increase flow. plus you can put them back if you
want.

its made easy because in some areas water pressure flow is way too
low, with the insert.

instructions should explain remove this for increased flow

Shower Head Flow Restrictors - Size Data ?
 

On Tue, 27 Mar 2007 13:45:56 -0700, Magnusfarce wrote:


Looking at the old problem with de-limiting the water flow in a modern
shower head. The new one I bought, a Delta Supreme, has a standard five
foot hose with an anti-siphon valve at the top end and a plastic insert at
the handheld end. The hose appears to be 5/16" ID, the anti-siphon end has
a set of eight 5/64" holes, and the plastic insert is 1/4" ID. By my
calculations, the hose has an area of 0.077 in2, the anti-siphon piece has a
total open area of 0.038 in2, and the 1/4 inch fitting has an open area of
0.049 in2.

At a water pressure of about 70 psig, should I assume that the 1/4 inch
restriction (or the even smaller multi-hole restriction) will limit the
water flow to below 2.5 gpm, or should I be looking for something else even
smaller (more restrictive)? Just thought I'd ask before I started drilling.

I don't believe in any restriction at all in the shower head. Such
restrictors invariably lead to a setup where the slightest water use anywhere
within 100' will cause the temperature to fluctuate wildly. When I find
such a restriction in the shower head, I remove it.

The place to control water flow is at the hot'n'cold spigots or at that
all'in'one jobby. I guess some don't have a flow control; is yours one of
those?