Concerns were expressed on this thread about pulling too much flow thru a
polishing filter. I polish with a Racor 500 in a stand-alone system. Some
time ago I called Racor and found out it's cartridge is rated for 20-25psi.
I equipped my polishing system with a vacuum gauge, same as on my engine.
Vacuum can then be monitored and regulated in a couple ways. One way is
variable speed pump. The other uses a bypass valve, so that not all fuel
being pumped goes thru pump. I'll usually keep the filter vacuum around 10
psi to be conservative. When it rises 5psi that's sign the filter is getting
clogged.

As for stirring up the crud, one guy told me he shoots a jet of air around
the bottom of his tanks. Has a small L-shaped copper tube on an air hose,
and with it tied to a dowel/rod pushes it to bottom and "aims" it around.
He'll them sometimes just let the thing bubble away while polishing to help
keep particulate matter in suspension.

Before "bubbling" the tank or doing anything else, first pump a quart or two
off the bottom into glass jar and check for water. And continue this,
discarding the water, until no more is seen.

FWIW.
Len

--
Eliminate "ns" for email address.

I had thought of a bubbling mechanism to stir the tank while polishing.
Also thought if the return from the polishing system was placed at the
opposite end of the tank from the uptake it might keep things mixed
up a bit. I have a draincock at the lowest of each of my tanks so draining
out water and a bit of sediment is pretty easy.

Doug

"Len Krauss" wrote in message
...
Concerns were expressed on this thread about pulling too much flow thru a
polishing filter. I polish with a Racor 500 in a stand-alone system. Some
time ago I called Racor and found out it's cartridge is rated for
20-25psi.
I equipped my polishing system with a vacuum gauge, same as on my engine.
Vacuum can then be monitored and regulated in a couple ways. One way is
variable speed pump. The other uses a bypass valve, so that not all fuel
being pumped goes thru pump. I'll usually keep the filter vacuum around 10
psi to be conservative. When it rises 5psi that's sign the filter is
getting
clogged.

As for stirring up the crud, one guy told me he shoots a jet of air around
the bottom of his tanks. Has a small L-shaped copper tube on an air hose,
and with it tied to a dowel/rod pushes it to bottom and "aims" it around.
He'll them sometimes just let the thing bubble away while polishing to
help
keep particulate matter in suspension.

Before "bubbling" the tank or doing anything else, first pump a quart or
two
off the bottom into glass jar and check for water. And continue this,
discarding the water, until no more is seen.

FWIW.
Len

--
Eliminate "ns" for email address.

That works. I put the pickup at bottom and return at top thru the filler
hole. Some people use the tank return -- they remove hose or have a
three-way valve. You might be able to connect a hose to your draincock --
which would simplify things.
Len

I had thought of a bubbling mechanism to stir the tank while polishing.
Also thought if the return from the polishing system was placed at the
opposite end of the tank from the uptake it might keep things mixed
up a bit. I have a draincock at the lowest of each of my tanks so draining
out water and a bit of sediment is pretty easy.

Doug

"Len Krauss" wrote in message
...
Concerns were expressed on this thread about pulling too much flow thru
a
polishing filter. I polish with a Racor 500 in a stand-alone system.
Some
time ago I called Racor and found out it's cartridge is rated for
20-25psi.
I equipped my polishing system with a vacuum gauge, same as on my
engine.
Vacuum can then be monitored and regulated in a couple ways. One way is
variable speed pump. The other uses a bypass valve, so that not all fuel
being pumped goes thru pump. I'll usually keep the filter vacuum around
10
psi to be conservative. When it rises 5psi that's sign the filter is
getting
clogged.

As for stirring up the crud, one guy told me he shoots a jet of air
around
the bottom of his tanks. Has a small L-shaped copper tube on an air
hose,
and with it tied to a dowel/rod pushes it to bottom and "aims" it
around.
He'll them sometimes just let the thing bubble away while polishing to
help
keep particulate matter in suspension.

Before "bubbling" the tank or doing anything else, first pump a quart or
two
off the bottom into glass jar and check for water. And continue this,
discarding the water, until no more is seen.

FWIW.
Len

--
Eliminate "ns" for email address.

I'm building a whole new unit for all the uptakes and returns. My
tanks are built-in. Integral to the hull. A plate containing everything
bolts through the top of the tank. But if I decide to place the return
for the polishing system at the opposite end of the tank, I'll have to
fashion a second unit at the opposite end.

Doug
s/v Callista

"Len Krauss" wrote in message
...
That works. I put the pickup at bottom and return at top thru the filler
hole. Some people use the tank return -- they remove hose or have a
three-way valve. You might be able to connect a hose to your draincock --
which would simplify things.
Len

I had thought of a bubbling mechanism to stir the tank while polishing.
Also thought if the return from the polishing system was placed at the
opposite end of the tank from the uptake it might keep things mixed
up a bit. I have a draincock at the lowest of each of my tanks so
draining
out water and a bit of sediment is pretty easy.

Doug

"Len Krauss" wrote in message
...
Concerns were expressed on this thread about pulling too much flow
thru
a
polishing filter. I polish with a Racor 500 in a stand-alone system.
Some
time ago I called Racor and found out it's cartridge is rated for
20-25psi.
I equipped my polishing system with a vacuum gauge, same as on my
engine.
Vacuum can then be monitored and regulated in a couple ways. One way
is
variable speed pump. The other uses a bypass valve, so that not all
fuel
being pumped goes thru pump. I'll usually keep the filter vacuum
around
10
psi to be conservative. When it rises 5psi that's sign the filter is
getting
clogged.

As for stirring up the crud, one guy told me he shoots a jet of air
around
the bottom of his tanks. Has a small L-shaped copper tube on an air
hose,
and with it tied to a dowel/rod pushes it to bottom and "aims" it
around.
He'll them sometimes just let the thing bubble away while polishing to
help
keep particulate matter in suspension.

Before "bubbling" the tank or doing anything else, first pump a quart
or
two
off the bottom into glass jar and check for water. And continue this,
discarding the water, until no more is seen.

FWIW.
Len

--
Eliminate "ns" for email address.

Doug - Since you're messing around with changes, you might what to have a
look at what friend Ray did for ideas if nothing else. See:
http://sundowner.thebilge.com/fuelsystem.htm
Len

--
Eliminate "ns" for email address.
"Doug Dotson" wrote in message
...
I'm building a whole new unit for all the uptakes and returns. My
tanks are built-in. Integral to the hull. A plate containing everything
bolts through the top of the tank. But if I decide to place the return
for the polishing system at the opposite end of the tank, I'll have to
fashion a second unit at the opposite end.

Doug
s/v Callista

"Len Krauss" wrote in message
...
That works. I put the pickup at bottom and return at top thru the filler
hole. Some people use the tank return -- they remove hose or have a
three-way valve. You might be able to connect a hose to your
draincock --
which would simplify things.
Len

I had thought of a bubbling mechanism to stir the tank while
polishing.
Also thought if the return from the polishing system was placed at the
opposite end of the tank from the uptake it might keep things mixed
up a bit. I have a draincock at the lowest of each of my tanks so
draining
out water and a bit of sediment is pretty easy.

Doug

"Len Krauss" wrote in message
...
Concerns were expressed on this thread about pulling too much flow
thru
a
polishing filter. I polish with a Racor 500 in a stand-alone system.
Some
time ago I called Racor and found out it's cartridge is rated for
20-25psi.
I equipped my polishing system with a vacuum gauge, same as on my
engine.
Vacuum can then be monitored and regulated in a couple ways. One way
is
variable speed pump. The other uses a bypass valve, so that not all
fuel
being pumped goes thru pump. I'll usually keep the filter vacuum
around
10
psi to be conservative. When it rises 5psi that's sign the filter is
getting
clogged.

As for stirring up the crud, one guy told me he shoots a jet of air
around
the bottom of his tanks. Has a small L-shaped copper tube on an air
hose,
and with it tied to a dowel/rod pushes it to bottom and "aims" it
around.
He'll them sometimes just let the thing bubble away while polishing
to
help
keep particulate matter in suspension.

Before "bubbling" the tank or doing anything else, first pump a
quart
or
two
off the bottom into glass jar and check for water. And continue
this,
discarding the water, until no more is seen.

FWIW.
Len

--
Eliminate "ns" for email address.

Good info, thanks!

Doug

"Len Krauss" wrote in message
...
Doug - Since you're messing around with changes, you might what to have a
look at what friend Ray did for ideas if nothing else. See:
http://sundowner.thebilge.com/fuelsystem.htm
Len

--
Eliminate "ns" for email address.
"Doug Dotson" wrote in message
...
I'm building a whole new unit for all the uptakes and returns. My
tanks are built-in. Integral to the hull. A plate containing everything
bolts through the top of the tank. But if I decide to place the return
for the polishing system at the opposite end of the tank, I'll have to
fashion a second unit at the opposite end.

Doug
s/v Callista

"Len Krauss" wrote in message
...
That works. I put the pickup at bottom and return at top thru the
filler
hole. Some people use the tank return -- they remove hose or have a
three-way valve. You might be able to connect a hose to your
draincock --
which would simplify things.
Len

I had thought of a bubbling mechanism to stir the tank while
polishing.
Also thought if the return from the polishing system was placed at
the
opposite end of the tank from the uptake it might keep things mixed
up a bit. I have a draincock at the lowest of each of my tanks so
draining
out water and a bit of sediment is pretty easy.

Doug

"Len Krauss" wrote in message
...
Concerns were expressed on this thread about pulling too much flow
thru
a
polishing filter. I polish with a Racor 500 in a stand-alone
system.
Some
time ago I called Racor and found out it's cartridge is rated for
20-25psi.
I equipped my polishing system with a vacuum gauge, same as on my
engine.
Vacuum can then be monitored and regulated in a couple ways. One
way
is
variable speed pump. The other uses a bypass valve, so that not
all
fuel
being pumped goes thru pump. I'll usually keep the filter vacuum
around
10
psi to be conservative. When it rises 5psi that's sign the filter
is
getting
clogged.

As for stirring up the crud, one guy told me he shoots a jet of
air
around
the bottom of his tanks. Has a small L-shaped copper tube on an
air
hose,
and with it tied to a dowel/rod pushes it to bottom and "aims" it
around.
He'll them sometimes just let the thing bubble away while
polishing
to
help
keep particulate matter in suspension.

Before "bubbling" the tank or doing anything else, first pump a
quart
or
two
off the bottom into glass jar and check for water. And continue
this,
discarding the water, until no more is seen.

FWIW.
Len

--
Eliminate "ns" for email address.

Subject: Fuel transfer/polishing pump
From: "Len Krauss"

Doug - Since you're messing around with changes, you might what to have a
look at what friend Ray did for ideas if nothing else. See:
http://sundowner.thebilge.com/fuelsystem.htm
Len

"So far the system has been great. After the initial polishing of all of the
old fuel (it turned out to be perfectly clean wouldn't you know!), I have had
no issues at all.

Now they're is a glowing unbiased review.
:-)

Capt. Bill

Good info, thanks!

Doug

"Len Krauss" wrote in message
...
Doug - Since you're messing around with changes, you might what to have a
look at what friend Ray did for ideas if nothing else. See:
http://sundowner.thebilge.com/fuelsystem.htm
Len

--
Eliminate "ns" for email address.
"Doug Dotson" wrote in message
...
I'm building a whole new unit for all the uptakes and returns. My
tanks are built-in. Integral to the hull. A plate containing everything
bolts through the top of the tank. But if I decide to place the return
for the polishing system at the opposite end of the tank, I'll have to
fashion a second unit at the opposite end.

Doug
s/v Callista

"Len Krauss" wrote in message
...
That works. I put the pickup at bottom and return at top thru the
filler
hole. Some people use the tank return -- they remove hose or have a
three-way valve. You might be able to connect a hose to your
draincock --
which would simplify things.
Len

I had thought of a bubbling mechanism to stir the tank while
polishing.
Also thought if the return from the polishing system was placed at
the
opposite end of the tank from the uptake it might keep things mixed
up a bit. I have a draincock at the lowest of each of my tanks so
draining
out water and a bit of sediment is pretty easy.

Doug

"Len Krauss" wrote in message
...
Concerns were expressed on this thread about pulling too much flow
thru
a
polishing filter. I polish with a Racor 500 in a stand-alone
system.
Some
time ago I called Racor and found out it's cartridge is rated for
20-25psi.
I equipped my polishing system with a vacuum gauge, same as on my
engine.
Vacuum can then be monitored and regulated in a couple ways. One
way
is
variable speed pump. The other uses a bypass valve, so that not
all
fuel
being pumped goes thru pump. I'll usually keep the filter vacuum
around
10
psi to be conservative. When it rises 5psi that's sign the filter
is
getting
clogged.

As for stirring up the crud, one guy told me he shoots a jet of
air
around
the bottom of his tanks. Has a small L-shaped copper tube on an
air
hose,
and with it tied to a dowel/rod pushes it to bottom and "aims" it
around.
He'll them sometimes just let the thing bubble away while
polishing
to
help
keep particulate matter in suspension.

Before "bubbling" the tank or doing anything else, first pump a
quart
or
two
off the bottom into glass jar and check for water. And continue
this,
discarding the water, until no more is seen.

FWIW.
Len

--
Eliminate "ns" for email address.

Subject: Fuel transfer/polishing pump
From: "Len Krauss"

Doug - Since you're messing around with changes, you might what to have a
look at what friend Ray did for ideas if nothing else. See:
http://sundowner.thebilge.com/fuelsystem.htm
Len

"So far the system has been great. After the initial polishing of all of the
old fuel (it turned out to be perfectly clean wouldn't you know!), I have had
no issues at all.

Now they're is a glowing unbiased review.
:-)

Capt. Bill

Doug - Since you're messing around with changes, you might what to have a
look at what friend Ray did for ideas if nothing else. See:
http://sundowner.thebilge.com/fuelsystem.htm
Len

--
Eliminate "ns" for email address.
"Doug Dotson" wrote in message
...
I'm building a whole new unit for all the uptakes and returns. My
tanks are built-in. Integral to the hull. A plate containing everything
bolts through the top of the tank. But if I decide to place the return
for the polishing system at the opposite end of the tank, I'll have to
fashion a second unit at the opposite end.

Doug
s/v Callista

"Len Krauss" wrote in message
...
That works. I put the pickup at bottom and return at top thru the filler
hole. Some people use the tank return -- they remove hose or have a
three-way valve. You might be able to connect a hose to your
draincock --
which would simplify things.
Len

I had thought of a bubbling mechanism to stir the tank while
polishing.
Also thought if the return from the polishing system was placed at the
opposite end of the tank from the uptake it might keep things mixed
up a bit. I have a draincock at the lowest of each of my tanks so
draining
out water and a bit of sediment is pretty easy.

Doug

"Len Krauss" wrote in message
...
Concerns were expressed on this thread about pulling too much flow
thru
a
polishing filter. I polish with a Racor 500 in a stand-alone system.
Some
time ago I called Racor and found out it's cartridge is rated for
20-25psi.
I equipped my polishing system with a vacuum gauge, same as on my
engine.
Vacuum can then be monitored and regulated in a couple ways. One way
is
variable speed pump. The other uses a bypass valve, so that not all
fuel
being pumped goes thru pump. I'll usually keep the filter vacuum
around
10
psi to be conservative. When it rises 5psi that's sign the filter is
getting
clogged.

As for stirring up the crud, one guy told me he shoots a jet of air
around
the bottom of his tanks. Has a small L-shaped copper tube on an air
hose,
and with it tied to a dowel/rod pushes it to bottom and "aims" it
around.
He'll them sometimes just let the thing bubble away while polishing
to
help
keep particulate matter in suspension.

Before "bubbling" the tank or doing anything else, first pump a
quart
or
two
off the bottom into glass jar and check for water. And continue
this,
discarding the water, until no more is seen.

FWIW.
Len

--
Eliminate "ns" for email address.