I have a 7.2 meters day sailer (portuguese constructed Sailmar). Instead using clorine like I posted before I homebuilt a short and transportable steel
trailer (80 pounds) with low steel
Take off the sailer on the harbour slope and pulling them out of water
using my car.
It work fine, lasting two days to clean and antifouling paint
The trailer is short enought (2.5 x 1 meter) and light to be carried on the car roof.