Is this a long term arrestor or do they lose effectiveness over time and need to be replaced later?

I was not impressed with the length of time the air stayed charged in these arrestors. I had to go through a bit of work to recharge the air in them. As a result, I would not recommend them to anyone to buy.

What pressure do i need to maintain? house piping is at 65 psi.

Water pressure is not effected by the arrestor so 65 PSI will be maintained in the water line after the arrestor is installed. When a shock (hammer) wave is generated, the unit will obsorb the shock wave. Follow the instructions provided with the unit to adjust the units working pressure. The unit is set at 30 psi by the manufacturer. The operating range is up to 150 psi.

What adapter do I need to make this work with outside hose bib?

This should be mounted in the line inside the wall going to the bib

So increasing the pressure setting on a hammer arrestor does what exactly?

first you need to know what your water pressure is, then put the same amount of air pressure in the arrestor with out any water pressure on it. it you increase the air pressure beyond your water pressure you greatly reduce its ability to work in its threshold. less dampening.

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Watts Water Hammer Arrestor (1/2In, Steel/Brass)

Product ID: 376768586

Details

Brand
WATTS
Colour
Blue
Item dimensions L x W x H
14.5 x 8.4 x
Material
Alloy Steel
Size
0.5 Inch

📏Compact 14.48 x 8.38 x 8.38 cm

⚙️0.5 Inch precision fit

🛠️Durable steel & brass alloy

Description

🚰 Silence your pipes, amplify your comfort!

COMPACT LIGHTWEIGHT - Easy to install without adding bulk or weight to your system
PRECISION 1 2 INCH SIZE - Seamlessly integrates with standard plumbing for a flawless fit
ROBUST STEEL BRASS BUILD - Engineered for long-lasting durability and corrosion resistance
TRUSTED WATTS BRAND QUALITY - Backed by a leader in plumbing solutions for peace of mind
SILENT WATER HAMMER PROTECTION - Eliminates noisy pipe shocks, preserving your home’s tranquility

The Watts Water Hammer Arrestor (1/2In, Steel/Brass) is a compact, durable plumbing accessory designed to prevent water hammer noise and pressure surges. Crafted from a corrosion-resistant steel and brass alloy, it fits standard half-inch plumbing connections, ensuring reliable, long-term performance in residential or commercial water systems.

Specifications

ASIN	B00AM1XLR6
ASIN	B00AM1XLR6
Best Sellers Rank	#259,316 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,877 in Industrial Pipe Fittings
Brand Name	WATTS
Color	Blue
Connector Type	Adapter
Customer Reviews	3.7 3.7 out of 5 stars (2)
Customer reviews	3.7 3.7 out of 5 stars (2)
Date First Available	14 September 2014
Exterior Finish	Brass
Is Discontinued By Manufacturer	No
Item Dimensions	14.5 x 8.4 x 8.4 centimeters
Item Weight	0.01 Ounces
Manufacturer	WATTS
Manufacturer	WATTS
Manufacturer Part Number	LF150A
Manufacturer reference	LF150A
Material Type	Alloy Steel Brass
Number of Pieces	1
Product Dimensions	14.48 x 8.38 x 8.38 cm; 0.28 g
Size	0.5 Inch
Thread Type	NPT
Unit Count	1.0 Count

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