Yes it will cost twice as much as a typical pressure washing job, which might be OK for a general house cleaning to make it look cleanear, but at least for a repaint I strongly recommend a hands-on scrubbing job. That is the prep method that gives you 20-30 year paint adherance for an older or dirty house.
Growing Pineapples From Suckers. A pineapple plant flowers only once, and produces one pineapple. Then it dies. But before it dies it also produces offspring. Suckers are little plantlets that grow between the leaves of the mature pineapple. Some varieties will produce more suckers than others, some will start earlier and others later. But they all produce at least a few suckers before they die. If you leave the suckers in place you get what is called a ratoon crop. That is the least amount of work for the next crop, just do nothing. But it has a few disadvantages. The plants start to crowd each other out and to compete for food, light and water. As a result the next lot of pineapple fruit is much smaller.
If the pineapple mother plant is large and healthy, and if you leave one or two suckers on it while the fruit is developing, additional fruit will form and be ready for harvest about a year after the initial fruit. With good care, most will continue to produce additional fruit every year for several years.