Pool's Closed

Strategy
An easy way to complete this Achievement is to play on the first Pool level. When picking your plants, you should pick the following:


 * Sunflower
 * Threepeater
 * Fume-shroom and Gloom-shroom
 * Starfruit
 * Cherry Bomb
 * Coffee Bean if using Fume-shrooms and Gloom-shrooms
 * Any other plants you think might help, such as Snow Pea, Potato Mine, and Squash.

''As the achievement states, you cannot use water plants. This includes the Lily Pad, so the pool cannot be planted in. The best way to play this level, and have six Sunflowers, is to arrange them in an L shape: two sunflowers in the first row, one in the second, nothing in the third and fourth rows, one sunflower in the fifth row, and two sunflowers in the sixth row. Alternatively, you could simply plant four Twin Sunflowers; but either way you will have an adequate amount of Sun.''

''You should focus on planting the Threepeaters in the 2nd and 5th rows; This way, you can damage the Ducky Tube Zombies that swim down the pool. If zombies are coming too close to the edge of the pool, wait for them to hit a Pool Cleaner, or plant a Cherry Bomb in the row next to them (as it is an area of effect attack that will hit zombies in the pool). If zombies on land are getting too close, stop them by planting Pea-shooting plants, or defensive plants (such as Wall-nuts or Potato Mines). A Gloom-shroom is technically cheaper than a Threepeater (it costs 25 Sun less if the Fume-shroom and Coffee Bean are also included), so is a good way to provide extra protection in the pool and directly in front of your Threepeaters.''

A simpler strategy is to fill as many places up with Starfruit as possible, as (just like Threepeaters) their projectiles go into other lanes. With a lot of Starfruit, you don't even have to worry about your pool lanes.


 * Note: Completing a Fog level without using any aquatic plants will not count towards this Achievement.