Water in pipes.. multiple brushes to swim through..

Hey all

Here's the scenerio..

Open tank on the ground of my map.. filled with water..

entrance to a pipe at the bottom that travels a ways under the map.. it too is filled with water, till it pops up at another location into another tank full of water..

I've tried a couple things, here is waht I've tried..


1 brush in the tank on the ground... Top face is water texture, all other sides of brush are Nodraw texture..

This make it work like water, i can swim around the tank..

I place a 2nd brush under the 1st water brush.. so the pipe becomes incased in it.. I texture its top face with same water texture..

it too becomes water.. but when tested.. I cannot swim past water brush 1 in the tank.. into water brush 2 in the pipe.. its an invisible stoppage..


Other thing I tried, was making the 2nd water brush, All sides No-Draw texture but turning it into a Func_water_analog entity...

This too does not allow me to pass from water brush 1 into water brush 2... If I cheat and Noclip into the 2nd brush.. it is water and i can swim in the pipe in the water but I cannot swim in between the two water brushes in normal play..


What can be done?

tried using Trigger texture , and various other player-passable textures yet there still seems to be an invisible blockage between the 2 water brushes..

that sounds about right..

do the brushes have to match up ?. seam to seam?,... I have a hexagonal water brush in the tank, but a square brush for the pipe...

is this a problem?