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Posted by Karl Townsend on February 21, 2008, 6:51 am
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It looks like my sewer and drainfield are very likely to be froze up when I
get home in a few days...
I own a hot pressure washer that I got from Northern Tool. They don't sell
the exact same model anymore but its very similar to this:
http://tinyurl.com/25qq5r
I'm planning on ordering 100' of hose and a sewer nozzle from these folks:
http://www.pressure-washer-parts.com/sewer_nozzle_hose.asp
I see the hose comes in three different sizes. Nominal 1/8, 1/4, 3/8. I bet
these aren't exact measurements. Nor are they NPT pipe sizes. (I've had the
wand off - IIRC, its a straight machine thread that tightens against a seal)
I have a neighbor that can use a caliper. He could take a measurement or
two.
Can anyone help me with which hose to order? What measurements would
identify the hose I have?
Karl
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Posted by Pete C. on February 21, 2008, 8:32 am
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Karl Townsend wrote:
>
> It looks like my sewer and drainfield are very likely to be froze up when I
> get home in a few days...
>
> I own a hot pressure washer that I got from Northern Tool. They don't sell
> the exact same model anymore but its very similar to this:
> http://tinyurl.com/25qq5r
>
> I'm planning on ordering 100' of hose and a sewer nozzle from these folks:
> http://www.pressure-washer-parts.com/sewer_nozzle_hose.asp
>
> I see the hose comes in three different sizes. Nominal 1/8, 1/4, 3/8. I bet
> these aren't exact measurements. Nor are they NPT pipe sizes. (I've had the
> wand off - IIRC, its a straight machine thread that tightens against a seal)
Those 1/8, 1/4 and 3/8 are almost certainly NPT sizes. What you have on
your pressure washer is most likely the metric 22mm coupling that is the
norm on most pressure washers I've seen. You likely need the 3/8" NPT
sewer nozzle and 3/8" NPT sewer hose, along with a 3/8 FNPT to 22mm male
adapter.
http://www.pressure-washer-parts.com/twistconnects.asp
A call to Northern could probably confirm the fitting you have, but if
it isn't the sliding sleeve quick connect (similar to the air quick
connects), and it's not a tapered NPT thread, it's almost certainly the
22mm metric fitting.
I think the female end of the 22mm fitting is normally on the hose side,
not the gun, but for the few dollars, you could get one of each adapter
from 3/8 NPTF to insure you have the correct end.
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Posted by Karl Townsend on February 21, 2008, 8:56 am
Please log in for more thread options Maybe I'm missing the whole concept of where to hook this sewer hose up. I'm
thinking take the hose wand off. Attach the sewer hose. That way, I have
fifty feet of existing hose to put down the line.
No way is this as large as 22 mm , nearly one inch. IIRC, its about the
diameter of my little finger. Or even a bit smaller.
Karl
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Posted by Pete C. on February 21, 2008, 9:21 am
Please log in for more thread options Karl Townsend wrote:
>
> Maybe I'm missing the whole concept of where to hook this sewer hose up. I'm
> thinking take the hose wand off. Attach the sewer hose. That way, I have
> fifty feet of existing hose to put down the line.
>
> No way is this as large as 22 mm , nearly one inch. IIRC, its about the
> diameter of my little finger. Or even a bit smaller.
>
> Karl
From what I'm seeing, you would install the 3/8" FNPT sewer nozzle on
one end of the 3/8" MNPT 100' sewer hose, install the 3/8" FNPT to 22mm
metric adapter on the other end of the 100' sewer hose, and then the
22mm metric fitting would couple to the pressure washer gun in place of
the normal lance / nozzle assembly so you still have the on/off trigger
control.
That M22 metric connection is the only non NPT and non QC fitting I've
seen used on pressure washers. Looking in the Northern catalog,
everything is either an NPT thread (mostly 3/8"), the QC connection, or
the M22 connection.
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Posted by Pete C. on February 21, 2008, 9:24 am
Please log in for more thread options Karl Townsend wrote:
>
> Maybe I'm missing the whole concept of where to hook this sewer hose up. I'm
> thinking take the hose wand off. Attach the sewer hose. That way, I have
> fifty feet of existing hose to put down the line.
>
> No way is this as large as 22 mm , nearly one inch. IIRC, its about the
> diameter of my little finger. Or even a bit smaller.
>
> Karl
Hmm, looking at that site again, I see they don't list a 3/8" sewer
hose, even though they list 3/8" sewer nozzles. So correct what I said
to 1/4" NPT sewer nozzle to 1/4" NPT sewer hose to 1/4" NPTF to M22 male
adapter to couple to your pressure washer.
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> It looks like my sewer and drainfield are very likely to be froze up when I
> get home in a few days...
>
> I own a hot pressure washer that I got from Northern Tool. They don't sell
> the exact same model anymore but its very similar to this:
> http://tinyurl.com/25qq5r
>
> I'm planning on ordering 100' of hose and a sewer nozzle from these folks:
> http://www.pressure-washer-parts.com/sewer_nozzle_hose.asp
>
> I see the hose comes in three different sizes. Nominal 1/8, 1/4, 3/8. I bet
> these aren't exact measurements. Nor are they NPT pipe sizes. (I've had the
> wand off - IIRC, its a straight machine thread that tightens against a seal)