If you have an old, standing bathtub, you can make a quirky addition to your garden by turning it into a pond. These bathtub ponds are ideal for homes with small, fenced in gardens, condo or apartment gardens and community gardens. Once you've set up your makeshift pond, you can fill it with a variety of plant and animal life to suit your tastes. Bathtubs can be quite heavy, so be sure to get help lifting your pond into place.
Plug the drain in your bath tub with an appropriately sized drain plug. Use the silicone sealant to seal the overflow drain and allow the sealant to dry.
Set up four concrete blocks to match the spacing of the feet on the bathtub. Lift the bathtub onto the concrete blocks and measure with the carpenter's level. Make any necessary adjustments by digging out some of the earth beneath the blocks until the bathtub is level.
Install your pond filter. If you don't plan on keeping fish in your pond, you may not need to add a filter to your pond. Pond filter installation methods vary so consult your owner's guide for instructions specific to your filter.
Fill the bathtub with water and start up your pond filter. Some filter pumps may need to be primed before they start effectively filtering the water; consult your owner's guide for details.
Add fish, snails, tadpoles and plants to your tub pond. Freshwater snails will eat up algae and keep your tub clean. When selecting fish for your bathtub, keep in mind that your space is limited; choose small fish like minnows and smaller species of goldfish. Choose plants that do well in ponds like water lilies, cattails, duckweed, papyrus and wisteria.
Place your pond in a spot that gets indirect sunlight. Refill your pond often; it is not unusual to have to add water on a daily basis.