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"Soil For Shallow Water Plants” 
It’s Easy to Build Your Own Pool 
LOCATION. The pool should be exposed to full sun, 
and should not be built too close to such trees as Pepper, 
Walnut or Fig, as the leaves, having a strong acid con- 
tent, falling into the pool will injure the fish. 
Lilies cannot be expected to bloom unless the sun shines 
into the heart of them at least part of the day. 
_ After deciding on location of pool, a very easy way to 
plan size and shape is to use the garden hose, tracing on 
the ground the exact plan you desire. We suggest that 
you make your pool as large as your space will permit, as 
there are so many water plants you will want room for. 
For the front yard the formal pool will best fill the re- 
quirements of good design, but for the back yard the in- 
formal pool works out beautifully with a rock garden. 
An informal pool is much easier and less expensive to 
build than a formal one, as it can be built without forms. 
For an informal pool, after deciding on size and shape, dig 
out soil to depth of 2 feet and level off. Shave side walls 
as near perpendicular as possible, as walls which slope are 
that much wasted space in your pool, and gather Algae 
making pool unsightly. Tamp walls and floor and rein- 
force with heavy fencing wire, covering walls and floor. 
The concrete should be poured continuously, so there 
will be no joints, and as it is poured the reinforcing should 
be pulled up to center of concrete, thus making pool 
stronger and less apt to crack. 

Tub Garden 
Lilies will grow with 4 inches of water over crown, but 
will do better with at least 8 inches. 
Well Retted Cow Manure 

Tropical Lily Planting 
In building a formal pool, by excavating carefully to 
the exact shape and size of the pool and carefully trim- 
ming the edges there will be no necessity for an outside 
form. Allow about 6 inches space for wall and build in- 
side form. The walls should be reinforced, and after it 
is poured, allow it to harden until the next day. Remove 
forms and pour bottom of the pool. Finish as directed 
below. 
Cement. The proper mixture of cement is one shovel of 
cement to five of sand. Dry mix well, then add enough 
water to make a rather stiff mixture. In cold climates, 
where heavy freezing may be expected, the concrete 
should be 6 inches thick; in mild climates, 3 inches is 
ample, 
As concrete is poured, it should be well tamped to take 
out the porous places and insure yourself of a water- 
tight pool. Allow cement to become thoroughly set, then 
apply a thin coat of 1 part cement and 3 parts sand which 
has been screened. When this is hardened apply a coat 
of pure WATERPROOF CEMENT. 
Be sure to keep moist as cement hardens, spraying 
with a very fine spray from hose, at intervals, as the 
slower cement hardens the stronger it becomes. 
After it is thoroughly set it may be filled with water, 
filling very slowly. Allow water to stand in pool for a 
week to soak out the alkali; drain off and when dry, 
sweep thoroughly and the pool is ready for planting. 
Water Level 
Well Rotted Cow Manure 47 

t.ardy Lily Planting 
Van Ness’ Water Lily Fertilizer 
A very concentrated fertilizer especially good for water 
lily culture, which we ship with orders for water lilies. 
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