Here’s where the popular kidney-shaped pools are most useful. They’re neither formal nor informal, but especially attractive with contemporary architecture. Planting is usually sparse but dramatic, making extreme use of contrasting colors and textures, and of unusual lines. Construction materials are simple to keep them subordinate in interest to the over-all design.

A refreshing sight outside a picture window is a small pool recessed in the patio floor. A recirculating pump sends up a spray of water from a pipe that ends just below the surface of the pool. These pumps make it possible for fish and plants to coexist with fountains because they reuse water in the pool. Fresh water from a spring, a stream, or the pipes that supply the house is too cold; and it may lack the small organisms on which fish feed.

Pools of contemporary design can also be placed in a corner of the property, with a tasteful grouping of shrubbery behind; on the bottom level of a series of terraces; in a depressed spot in the lawn; in the curve of a path; or at one side of a breezeway. They can be illuminated dramatically with the new underwater lights available in many sizes and styles.

Informal, Naturalistic Design

These are either adaptations of existing streams or pools, or designs of uneven form deliberately created to look as if they had been there all the time. They’re best suited, of course, to naturalistic landscapes where slopes, rocks, and hidden springs give them a reason for existence. The water-holding basin may be of any material, as long as it is not noticeable. Any edgings, copings, or nearby trimmings should be just as natural as the pools.

A rock garden on a slope is a perfect setting for a pool with rocks that jut out over the water and, if possible, a rock or two coming up through the water from below. Or two small pools, one above the other, can be joined by a miniature waterfall. If there’s no water supply on the spot, use a recirculating pump. But be careful that the waterfall doesn’t resemble man-made steps. It should be as craftily haphazard as if the elements had worn it into the rocks.

A dripstone is another delightfully musical device—an overhanging rock from which water drips down onto the surface of the pool. The sound has more resonance when there is an empty chamber behind the dripping water.

A meandering brook can be widened to make a pool. Or a completely artificial brook can be constructed of cement, like a pool, with drainage and overflow pipes and similar appurtenances. This isn’t easy to execute effectively, but it can be completely intriguing. It might be wise to try to re-create part of a real stream in the nearby countryside.

One small boulder half-sunk in the ground can inspire an irregular, shallow pool that makes a natural birdbath. A miniature shrub may back up the boulder; rock-garden plants may grow at its base.

Many nooks and corners in the naturalistic landscape spontaneously suggest the creation of a tiny pool, and become exciting little garden surprises. These can often be so simply made that there’s not even a drainage hole in the bottom. Scooping out the water, as needed, is no chore at all.