At this Artesian Well,You can use any type of
thermometer to measure the water temperature. You can purchase an
inexpensive hydrometer at an aquarium enough to be used as is, to
be simply pumped through radiators in a home, then returned to the
ground in another well. During cold seasons, the water, because it
has a high specific heat capacity can be used as a source of heat
for heat pumps that is much more efficient than using air. The
relatively constant temperature of groundwater can also be used for
heat pumps.
The temperature of water from wells is
remarkably constant. In wells that are from 30 to 60 feet deep,
water temperature is 2° to 3°F above the annual mean temperature of
the locality. Water decreases in temperature about 1 °F for each 64
feet of depth to the well.
The mean annual temperature for this area
is 52 degrees F.
GROUNDWATER AND
SPECIFIC GRAVITY
. Springs provide a source of groundwater.
It is a popular belief that spring waters are clear, colorless,
sparkling and absolutely pure. While these facts hold true for many
springs, others show a marked degree of turbidity, especially after
a heavy rainfall.
Spring waters further contain rather large
amounts of dissolved mineral matter and are hard. On the score of
potability, no spring water should be considered safe to drink
unless it is given periodic bacterial examination.
Specific Gravity is the ratio of density of
a given liquid to that of pure water. Specific gravity is used to
measure the salinity of seawater as compared to distilled water.
Distilled water has a specific gravity of 1.000 while natural
seawater has a specific gravity of about 1.025 (due to the salt)
.Specific Gravity is one measure of how pure water is.
The function of the hydrometer is based on Archimedes
principle that a solid suspended in a liquid will be buoyed up by a
force equal to the weight of the liquid displaced. Thus, the lower
the density of the substance, the lower the hydrometer will
sink.
You can make your own hydrometer in a few minutes with
household items. Go to this link:
CLICK HERE
UPDATE (08-07)It appears the above link no longer works.So, I
suggest you google "Homemade Hydrometer: for links to drinking
straw types, or: Can you make a homemade hydrometer? Apparatus and
Materials: * a new unsharpened pencil with an eraser * a small
piece of modelling clay * at least four test tubes or tall flasks
of the same size and shape * permanent markers, various colours *
water * salt or sugar Procedure: 1. Prepare three different
solutions of salt and water or sugar and water (solution #1 5mL
salt or sugar/100mL water, solution #2 20mL salt or sugar/100mL
water, and solution #3 40mL salt or sugar/ 100mL water. Shake well
to dissolve). Label the solutions #1, #2 and #3 2. Using permanent
marker, place marks at 1 cm intervals the complete length of the
pencil starting at the eraser end. 3. Place a small piece of
modelling clay around the non-eraser end of the pencil. 4. Fill
test tube or flask 2/3 full of water (at least 10 cm) 5. Place the
end of the pencil with the clay into the test tube or flask. 6.
Adjust the piece of clay so that the pencil stands upright in the
water (may need to remove some clay, add some clay or distribute
the piece more evenly around the end of the pencil). 7. With a
permanent marker, mark the water level on the pencil. 8. Fill a
second test tube or flask to the same depth with solution #1. Place
the pencil/hydrometer into the test tube or flask and mark the
solution level on the pencil. 9. Repeat step #8 with solution # 2.
10. Repeat step #8 with solution #3. You will have to figure out
yourself how to calibrate it...I can't do everything for
you.
In order to log this cache, you
MUST:
1. Go to the well and measure the temperature of water.
2. Measure the Specific Gravity of the water in this well.
3. Post a picture of yourself, including your face, at the well
with your Hydrometer.
4. Email the owner of the cache the following information:
Temperature of the Water, Specific Gravity of the Water, and, using
the information given above, your estimate of the depth of the
well.
Have fun and park
carefully.
GAG PHOTOS WILL NOT BE ACCEPTED
![]()