While a full-size swimming pool is lovely if you have the space and the money, there are plenty of other water features that will help you soak tired muscles, cool off and stay in shape.

Compact, space-conserving hot tubs, lap pools and swim spas have expanded aquatic options for homeowners. Forget the cliche of the 1970s-era party animal hot tub. Today’s hot-tub owner is more often an empty-nest baby boomer looking for decompression instead of action, said area architects and retailers.

“The number one reason people own hot tubs is for relaxation and stress relief because from a physiological standpoint it actually does dilate the capillaries, lowers your blood pressure. It does relax you,” said Adam Burke, the owner of two locations of Atlanta Spa & Leisure in Cumming and Doraville. Burke carries a variety of hot tubs and jetted swim spas at his stores, including the Michael Phelps line of high-performance swim spas, which use propellers to create a current to swim against.

“The swim spas have had a big uptick as the baby boomers have moved into retirement,” Burke affirmed. “They have those aches and pains, hip replacement, knee replacement, old sports injuries,” said Burke, making swim spas and hot tubs an ideal zero-impact workout.

Many older customers are also choosing water features to create a vacation-worthy experience at home, said Moon Bros. architect and co-owner Mark Fosner. Fosner is currently installing both a hot tub and enclosing a 20-foot long jetted swim spa in one Sagamore Hills home. “And that’s their retreat,” Fosner said.

Architect Michael Gamble of Gamble and Gamble Architecture has also seen a definite increase in clients wanting water features like lap pools or hot tubs, which are also far more affordable than a traditional swimming pool.

“You can build a small water feature in the backyard for a very reasonable amount of money; less than $10,000,” Gamble said.

Whether your hot tub or swim spa is placed inside or outside, architects and retailers recommend that you treat a water feature not just as an experience to enhance your quality of life, but as a design element within your home. Consider your view from the water, privacy, when you will be most likely to use it, sun angle and maintenance.

“You’re using it to enhance the experience of the house,” Gamble said.

Hot tub tips

*Check local codes to see how to keep your hot tub or pool safe. Most areas require at least a 5- foot fence surrounding the pool. Locking safety covers can also help. "Covers have improved considerably,” said Moon Bros. co-owner and architect Mark Fosner. Many covers are now placed down at the water level and disappear into a vault when not in use, to make them less obtrusive and can support substantial weight if someone accidentally steps onto the tub cover.

*When placing a hot tub inside a home, “you have to control the humidity,” most often with a permanent dehumidifier. — Mark Fosner

*Adam Burke prefers not to recess hot tubs to prevent accidental falls into the hot tub and make the tub mechanics easier to access. And when it comes time to sell, “If you don’t sink them into the deck, they’re a bargaining chip, because you can actually take them away.” — Adam Burke, owner Atlanta Spa & Leisure

*Make sure that your deck or foundation can support the combined weight of the tub, water and occupants, Burke said. That extends to any retaining walls built to support a tub or pool. “The classic mistake is people put it in a pretty steep site and they don’t do their retaining wall correctly,” Fosner said.

*Some hot tubs feature built-in LED lights at the base of the tub to light your way to the tub, Burke said. Also, consider how lighting can affect things like the view of the stars overhead, Fosner said.

*To create a spa experience, families will often combine hot tubs and plunge pools to offer hot soaks followed by a bracing cold plunge.

*“The general rule of thumb is make it convenient,” Fosner advised. By placing one hot tub in a Marietta home within a master suite, Moon Bros. provided the homeowners with easy access. “They use it all the time. They just step right down and get in the tub.”

Lap and plunge pool tips

*“Everybody wants to swim mileage,” said Moon Bros. co-owner Karl de Santos, who said the standard lap pool width is 8 feet wide and 66 feet long -- when space is limited -- which translates to 80 laps to a mile. “You [don't] want to have a random distance if you can help it," de Santos said.

*Make the pool deep enough to factor in a 4 or 4 1/2-foot flip turn area at the ends of the pool. — Karl de Santos

*Lap pools are about exercise. If you don’t plan on putting the laps in, these probably won’t get used. “You can’t dive in them, they’re not deep, you can’t play volleyball, you can’t play pool sports.” — Karl de Santos

*An architect can recirculate water to add ambient sound. “The sound of moving water, of trickling water is very soothing. And in many instances it provides enough white noise to block out the sounds of traffic or the sounds of neighbors.” — architect Michael Gamble.

*Consider ways to make containing the pool appealing, whether a wall or other architect-created barrier. “It can be something really beautiful and elegant... that doesn’t look like it came off of the shelf from the hardware store.” — Michael Gamble

*Saltwater is in. “People like it a lot more,” said de Santos, without the smell and harshness of the usual highly chlorinated pool.

*“Pools swallow water. You can evaporate -- in a normal pool with a lot of surface that’s in the sun and wind -- between a half an inch and an inch a day.” So consider increased water usage costs. — Karl de Santos

Swim spa tips

*Swim spas can allow you to either swim against a jet or propeller-created current or can include aerobic features like an underwater treadmill or bicycle. Some spas and hot tubs even integrate a DVD player or a built-in sound system to keep you entertained while you exercise.

*Highly chlorinated tubs and spas of the past with their harsh chemicals have evolved. “What we use is a blend of minerals; silver, copper, zinc that naturally purify the water without drying out your skin,” Burke said. Also available for purification is a mix of seaweed enzymes with skin-softening vitamin E called “The Natural” which also helps destroy bacteria in the water.