
I added a wand sprayer to my Chapin tank and pump to wash my driveway, but I also wanted to keep using the wand sprayer for weeding occasionally. Chapin doesn't have a Y-adjustment, and it can't help you, but it fits the 3/8 tube on Chapin syringes perfectly. I bought extra jubilee clips in HD but 3 are coming here. It serves the purpose and works well. Brass is durable. It's not cheap but you can't find this Y-shutoff valve anywhere else so it's worth the price and MUCH cheaper than buying 2 tanks and pumps.

1 Inch Beduan Brass Electric Solenoid Valve, 12V Normally Closed Air Valve For Water, Gas, Fuel, And Oil
10 Review

12V Brass Solenoid Valve, 3/4" Electric Air Valve For Water, Air, Gas, Fuel And Oil - Normally Closed By Beduan
10 Review

DIGITEN DC 12V 1/4" Inlet Feed Water Solenoid Valve Quick Connect N/C Normally Closed No Water Pressure
14 Review

Joywayus 5/8" ID Hose Barb Hex Union Brass Fitting Water/Fuel/Air With 10 Stainless Steel Clamps (Pack Of 5)
13 Review