Evening star., 1941-07-12
Godgets
Hot-Woter Supply;
Woterproofine
Masonry Walls
By HILSON MUNSEY.

during the summer, particularly In
the summer cottage, is often a prob
lem. If there is supply of gas
the problem Is not so very difficult
or expensive; that is, if the supply
is needed for kitchen use or where
water Is not required in quantities
of more than a gallon a minute.
This particular attachment requires
no tank for its operation. 1t does
not store up the hot water but pro-
duces it when it is needed.
This heater is attached to the
faucet. 1t has two faucets of its
own, one for hot and one for cold
water. This enables the housewife
to use hot water, water tempered
from the cold faucet or cold water
alone. This heater Is installed by
removing the cold water faucet and
substituting the unit. 1t stands Is
inches high and is small enough to
fit almost any place where there is a
cold water faucet.
The operation is very simple
When the hot water faucet is turned
on the gas also is turned on. Shut
ting of the faucet also turns out
the gas until the next call on its
function This unit requires no
special plumbing, and there is no
waste of hot water. The only water
that Is heated is what flows through
when the hot water faucet Is
opened.
Waterprooang.
The maintenance OF masonry sur
faces depends upon the inability OF
moisture to penetrate it. If mois-
ture gets into it and then freezes,
the result is not so good. In sum-
mer the moisture may and probably
will IN time penetrate to the inside
cf the house.
Ordinary paint is not satisfactory
because it must be applied to
surface that is absolutely dry. and
that is difficult condition to at
tain in masonry. Moreover, the al
kalies in the cement will ruin the
paint II something is not done to
neutralize their effects.
This material can be applied to
either new or old masonry surfaces.
1t is not affected by alkalies and
salts that are always present IN
concrete.
To apply it to the surface that
II is desired to waterproof, that
surface must first be cleaned OF only
loose particles. This can be done
by sandblasting or with wire
brush vigorously applied. If fungus
growth shows on the masonry this
must be removed by applying
weak solution of muriatic acid.
which would mean ! part OF the
acid to about Is parts OF water.
When the acid has done its work
IT. must be thoroughly washed on
with water before applying the wa
terproohng.
Then the surface is thoroughly
saturated with water applied either
with a calcimine brush or A hose.
It must not be allowed to dry out
before the waterprofing is put on.
It should always be used when the
surface is in shadow, If that is at
ell possible.
The material is then prepared by
mixing 10 pounds of it to 3 quarts
of clean water. This will cover
hundred square feet of surface with
two coats. This estimate is based
on an ordinary concrete surface.
To mix the material, round-bot-
toned container is preferable be-
cause it makes the task of mixing
easier and is less wasteful. When
the water is added. the mixture
should be stirred to the consistency
of cream, and a quantity should be
made that can be applied within
half an hour or else there will be
waste. Half an hour is the time
it takes for the mixture to start
to set.
1t Is useless to add more water
II the mixture starts to harden.
The only thing to do under these
circumstances is to throw it away.
An ordinary workman can apply a
gallon and a half or from 10 to Is
pounds of the dry material in half
an hour, but the amateur wouldn't
be able to do as we'll so that in
mixing the waterprofing this fact
should be taken into consideration.
When the mixture is ready it
should be applied with a scrubbing
action 50 that it gets into all the
hair cracks A brush with fine hair
bristles should be used. The sur
face must be thoroughly covered
and the application allowed to set
for four hours before any further
work is done on it. This first coat
should be kept wet after it has set,
either with fine garden hose spray
or calcimine brush until the sec
ond coat is put on. The second
coat is applied with even strokes
Of the brush and should not be
scrubbed in. This second coat must
also be kept moist until it is cured.
The material can be bought in
seven different colors-green, blue,
ivory, cream and three different
grays. 1t can be put on also in 4
natural color.
Note-For further Information
about any Of the products de-
scribed above, write Mr.. Munsey,
In care Of The Star. and inclose
. stamped, self addressed enye-