On 2014-01-21, Joe Gwinn wrote:
In article , Larry Jaques
wrote:

On Mon, 20 Jan 2014 20:49:27 -0600, Ignoramus8543
wrote:

On 2014-01-21, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ignoramus8543 fired this volley in
:

I have a particular machine where soluble oil/metalworking fluid has
dried out in the sump. How do I remove the dried out stuff to prevent
clogging of the fluid system with the remnants of the old dried out
stuff.

Hot TSP solution will not only soften and remove the old stuff, but also
clean the metal of the tank.

Make up a strong solution -- say a cup TSP per gallon, and heat it up to
near-boiling, either in a separate pot or in the tank with an immersion
heater. Let it work for as long as you can stand. A couple of days of
soaking will get it all pretty much limbered up and removable.

Lloyd

Awesome, and easy, thanks

Just be sure you get real TSP. With the rampant greenies out there,
there are a lot of fake TSPs on shelves now. Like the "green" mineral
spirits, which don't work worth a hoot.

Yes. Sellers of real TSP spell the chemical name out on the box, so
there can be no confusion.

The standard brand is Savogran and is available at real paint stores.
Hardware stores often have only "TSP", which is usually sodium
silicate, which will not work.

Joe Gwinn

I bought 4 lbs of TSP today, I hope that it will work.

i