He must be a mechanic.....  He sure wants you to spend a 'lot' of money
anyway.  That will clog up the rad as well as the heater core which can
be 8 hours labor to change on some vehicles.

Pepper will work for a rad leak in a real pinch, but again clogs can be
an issue.

Nothing, but nothing works on a leaky waterpump.  That is a moving part
that has worn out.  It is just being nice to you by showing you the leak
before it up and pukes all the coolant out in one shot.

A loose hose clamp can cause liquid to run down onto the pump to imitate
a leaky pump and the base gasket can leak, but if the leak is at the
nose or off the bottom of the pump, it needs to be changed ASAP.  They
will just up and totally fail fast.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

The water pump is faulty - replace it.

All leak-gunk-fixit solutions will do the same
to the entire engine cooling system.

The egg is a bad bad idea.  The water pump has an impeller inside to
pump the water and is driven by the pulley outside.  There is a shaft
between the two that has a bearing and seal.  Once the seal fails
water gets to the bearing and the water pump fails in short order or
the bearing can wear out first causing the seal to fail.  In either
case once you see water the mechanical pump is worn out.

There is no cure for this short of a replacement waterpump.  You need
to have this dealt with now while it is still a low dollar repair.
Some waterpumps are driven by the timing belt and cause major engine
damage if they fail and break that belt.   God has thrown you a bone
this time and let you know it needs to be fixed before costing you a
few thousand...  don't ignore it.

                Steve B.

Yes, there's a great deal of truth to it. Let me guess, your friend is
75 years old or has a grandpa that passed this wisdom on to him. When
systems had little or no pressure and no heater cores, the egg
treatment would work until a person could unload the piece on somebody.
Also, many people at the time had there own chickens out back and could
maintain the treatment every few days.