Mystic Plumbers’ Union

Mystic Plumbers’ Union is a Grade IV Fraternity officially designated under the Sixth Concordance as the singular authority for the installation, maintenance, and exorcism of non-mundane hydraulic systems within the Tower’s vertical jurisdiction. It is commonly conflated, in error, with the Lamplighters Union due to shared structural nomenclature and its classification under the same Concordance framework; however, its operational purview is distinct and its rituals are governed by the separate Codicil of Aqua Vitae et Mortis. The Union’s headquarters, known as The Conduit, is permanently stationed on Floor 666 (designated ‘The Sump’).

History and Charter

The Union’s formation is contemporaneous with the earliest recorded expansions into the Tower’s lower, hydrologically-active floors. The Codicil of Aqua Vitae et Mortis, appended to the Sixth Concordance as Annex Σ, grants the Union sole authority over “all fluids that flow with intent, all pipes that dream, and all drains that swallow more than water.” Its charter was formally ratified by the Office of Conduit Verification on 13 Pluvios, 12,422 (Tower Reckoning). The Union’s Grade IV status, one grade higher than the Lamplighters Union, reflects the greater perceived metaphysical hazard of its work, as established by Precedent 12.α of the Third Concordance.

Operational Jurisdiction

The Union’s duties are segmented into three primary branches:

• Installation & Consecration: All piping intended to carry enchanted, memory-laden, or prophetic water must be laid by a sworn Union artisan following the Rites of Conduction. This includes the threading of silver wire into joint seals and the inscribing of flow-direction runes at every T-junction.
• Maintenance & Scouring: Regular clearing of psychic residue and audible blockages from arterial lines. The biannual ‘Great Flush’ of the Western Pressure Column is a mandated event requiring three Master Plumbers and a choral accompaniment from the Choir of the Dripping Niche.
• Exorcism & Re-routing: The most hazardous duty, involving the pacification and re-direction of ‘rogue currents’—hydraulic phenomena exhibiting malice, lamentation, or excessive curiosity. Procedures are dictated by the Manual of Abyssal Hydraulics, a living text bound in waterproof vellum.

A long-standing jurisdictional dispute exists with the Lamplighters Union regarding the maintenance of Attenuated Lumen-Sconces that utilize bioluminescent fluidics. The Seventh Concordance vaguely assigns “fluid-borne light” to both fraternities, leading to a complex and often contradictory series of work-sharing agreements and grievance filings.

Notable Instruments and Rituals

Union craftsmen employ tools not found in mundane plumbing. Key instruments include the Spirit Level (which measures alignment with spiritual as well as physical planes), the Wrench of Final Torque (used only to seal pipes carrying forbidden knowledge), and the Sonic Plunger (calibrated to the resonant frequency of complaining pipes). The annual Rite of the Silent Tap, performed at the driest moment of the annual cycle, involves the symbolic tightening of every main valve in a nominated sector to “prevent the leakage of secrets.”

Apprenticeship culminates in the Ordeal of the Backflow, where the candidate must correctly diagnose and remedy a simulated hydraulic haunting while blindfolded and reciting the inverse principles of hydrodynamic sympathy.

Scholarly Disputes and Concordance Contradictions

The Union’s authority is frequently challenged on theoretical grounds. Annex Σ of the Sixth Concordance clearly grants it dominion, yet Clause 704.b of the Fourth Concordance reserves judgment on “trans-elemental conduits” for the Archivists of the Steam. Furthermore, Precedent 12.α of the Third Concordance (which elevates the Union’s hazard grade) is directly contradicted by Addendum Ω.3 to the Sixth Concordance itself, which suggests that “light misplaced is more perilous than water misdirected.” These conflicts are typically resolved ad-hoc on the work site, with the senior-ranking fraternity present claiming temporary precedence.

Relationship with The Sump (Floor 666)

The Union’s headquarters, The Conduit, is not merely an administrative center but a critical hydraulic organ for the lower Tower. It houses the Primary Sedimentation Tank, where non-literal refuse (regrets, broken vows, unsent letters) settles out of the wastewater stream before it is released into the Sub-basement Catacombs. The Sump’s ambient humidity is precisely maintained at 66.6% relative humidity, a condition mandated for the proper curing of mystic pipe sealant. The floor’s designation is often cited as proof of the Union’s diabolical associations, a claim its members dismiss as a “coincidence of numerology” vigorously contested by the Department of Numerical Integrity.

Present Status

The Mystic Plumbers’ Union remains a vital, if often overlooked, component of the Tower’s infrastructure. Its members operate under a strict vow of confidentiality regarding what they witness in the pipes, a vow enforceable by hydraulic means. Current membership rolls are, by tradition, fluid, but estimates place the number of sworn artisans at approximately 1,101. The Union continues to lobby the Librarians for a definitive, non-contradictory Concordance ruling on the fluid-light dispute, a prospect most scholars consider theoretically impossible.