had to make a bespoke induction piping after fitting my fmic

i have an early classic sti and the resonator box fouls the pipe work, so..

i need to fit an adaptor to the piework to pipe to the boost solenoid,

can i just use the washer jet hose for this, im not sure if the pipe will be ok? it will only feed a slight vacum as its post maf- pre-turbo.

q2. fitted an hks dump valve, replacing the baileys one i had (basically because the adaptor on the fmic piping wouldnt fit the baileys) so now it wont be recirculating - take it i just blank off the origional pipe to the inlet manifold?

or there is a nipple at the top of the dump valve, is that to join to the inlet manifold? sorry ive got no/little exp in dumpvalves

thanks for any input