I had my home made pressure bleeder pumped to 15 lbs while I was bleeding the clutch- the hose from the slave popped off and it looked like a brake fluid waterfall under the car.

30 lbs I'd be worried about cracking the fluid container!

__________________
95 E300D gave away
77 300D, 227k, station car
83 300CD 370k, body gone away to the rust gods, engine is in a Yota pickup, going strong
89 190E 2.6- 335k, no more
79 VW FI Bus- 154k summer driver
59 VW Beetle ragtop- 175k
12 VW Jetta- 250k
74 MG Midget-78k