The Rural Voice, 1979-02, Page 26atrazaine residues and herbicides used on
the next crop.
Soil samples sent to RCAT will be
seeded with susceptible crops in a green-
house and observed for four to six weeks to
determine the effect of the residues.
Soil samples should be taken from the
top half and the bottom half of the plow
depth. Another sample of a similar soil
without atrazine should be included as a
check. About seven litres (six quarts) of
soil are required to conduct the tests.
Samples should be mailed to Rudy
B -own, Ridgetown College of Agricultural
Technology, Ridgetown, Ontario.
RCAT, located 20 miles east of Chatham,
is one of four colleges of agricultural
technology operated by the Ontario Min-
istry of Agriculture and Food.
What can you do
for freezing pipes ?
Many farms are plagued with the
repeated freezing of underground water
pipes. This problem is not only irritating, it
can be costly as well.
"The pressure created by freezing water
can split metal pipes," says Ross Irwin, of
the School of Engineering, Ontario Agri-
cultural College.
Most problems occur in unheated build-
ings, crawl spaces under buildings, and
exterior walls subject tt drafts, but pipes
under driveways and sidewalks, where
snow is scraped off, may also freeze.
The best solution is prevention. Pipes
should be laid below the frost line. The
depth of the frost line varies depending on
your area. The pipes should be laid in a
straight line, on a uniform slope, between
buildings.
Insulation will also help prevent freez-
ing. Pipes in unheated areas should be
insulated to slow down heat loss.
"In very cold weather, allow a bit of
water to run through the pipe," advises
Mr. Irwin. "Even with insulation, the
water will freeze if it is left standing long
enough. If you plan to leave the heat off in
a building, drain the piping system for
protection."
Once the soil or the pipe is frozen, it
won't thaw naturally until spring. However
there are methods of thawing the pipe
withouth causing damage.
"Metal water pipe can be thawed using
a welder or pipe thawer," says Mr. Irwin.
"However, most farm welders are limited
to 180 amps, and are too small for thawing
metal pipe."
Pumps can be thawed successfully using
hard glass heat bulbs, or radiant heaters,
suspended about 45 cm above the frozen
PG. 26 THE RURAL VOICE/FEBRUARY 1979
0
F.W.D.
Universal
Tractors
: A better traction all year round
Available in 2 and 4 wheel drive
ATTENTION...
BUY NOW Before Mar.
1st and WIN a trip to
France and Romania in
March 1979.
ALL EXPENSES PAID!
Quality -Durability -Versatility -Efficiency
ERASER'S
REPAIR SERVICE
Phone 482-9286 Charlie Fraser
Brucefield
Mr. Farmer...
Come in and see us about our
SPECIAL DISCOUNTS
on
SEED GRAIN
for the month of February.
OPNOTCH
TOPNOTCH FEEDS LIMITED
Brussels 887- 6011
Seaforth 527-1910