air ride accumulator tanks???

what are these for? a friend of mine has them on his canned ride but he said he cant tell any difference and they are hooked up right. and another question he was wondering how do u go about letting his car fall slower than just one big drop, i have a couple minis with air ride and i dont know how to do it either, so how is it done, thx ahead of time..

http://cgi.ebay.com/ebaymotors/air-ride-accumulator-tanks-air-bag-lowrider-airride_W0QQcmdZViewItemQQcategoryZ42609QQihZ007QQitemZ170113561878

These tanks are perfect for making your car with air cylinders ride smooth like air bags. Or if you all ready have air bags they will give you the full suspension of the bag even when at full pressure making for a SMOOTH RIDE! These accumulators are in excellent shape and even come with brass "T" fittings already attacted. Feel free to ask any questions These 2 tanks are enough for all 4 wheels to be plumbed indavidually for a CADDY LIKE RIDE!

Basically, installed between the bag and the fill valve, it kinda increases the volume of the bag, so it's like riding on a larger bag.... kinda hard to explain. It make sthe ride softer by creating more volume for the compression of the bag to dampen.

Here's the answer to your drop speed issue.
http://www.suicidedoors.com/AirManagementValveDumpControls.php

u can put reducers on them to lower it slowly...

to make for a slower dump....you can have smaller dump valves or put adjustable plugs in them or put plugs in them and drill holes in them until you like how slow it dumps. whoaaa i said DUMP!