Therapy Jets/Blower

Champagne Spa – Passive Air System (No Blower)

❓ Is a Blower Required?

Not always. A properly designed champagne spa can function without a blower if:

The air line is kept short and direct

Jet selection creates sufficient Venturi effect

The airline avoids vertical “P-trap”-like routing

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✅ Passive Air Design Best Practices

1. Air Intake Distance

Keep air intake as close to the spa as possible

Do not run the airline 30–40' around the house or under multiple footers

Install the intake in a nearby planter or deck corner

2. Airline Routing

Use flat, direct routing

Avoid up/down/up/down routing, which traps water and kills airflow

Ideal route: Drop down under shelf/trough → travel flat → stub up

3. Stub-Up Height

Stub air intake pipe 6" above waterline

Add a tee fitting at the top to prevent debris entry

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🚫 No Hartford Loop on Champagne Spa

Do not use a Hartford Loop in passive champagne spa systems.

Creates unnecessary resistance

Difficult for water to purge through natural Venturi suction

Instead, run a straight airline with tee at top

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🔧 Jet Selection & Pipe Size

Use larger therapy jets (e.g. Waterway 211-3040) to generate stronger Venturi draw

Use 2.5" airline reduced to 1.5" at jets

Typical recommendation: 8–10 jets max without blower

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💡 Key Design Notes to Emphasize in Drawings

Label air intake location clearly

Note "NO BLOWER – Passive Venturi Design"

Annotate routing: “Airline routed flat with minimal rise/fall”

Stub-up: "Stub up 6” above waterline, cap with tee to block debris entry"

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🔁 When to Use Hartford Loop

Table 6

Table 6

Spa Type

Hartford Loop?

Notes

Standard Spa

✅ Yes

Prevents water backflow

Champagne Spa

❌ No

Counterproductive to Venturi action

There are no rows in this table

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