LAST PLUMBER UNABLE TO REMOVE SOLDERED HOSE BIB IN BACK TO HOOK IN ANTI SIPHON VALVE REMOVED HOES BIB AND INSTALLED BALL VALVE, TEE FOR POOL FILL VACUUM BREAKER, AND HOSE BIB INSTALLED CUSTOMER SUPPLIED VACUUM BREAKER AND ADDED UNION AND CONNECTED BACK TO EXISTING PVC TESTED FOR LEAKS