The temple was registered by the Department of Fine Arts as a historic site in 1934 CE and is one of 108 sources of sacred water across the country.
Wat Tum is classified as a third-class Royal temple of the 3rd grade (without suffix) following a ranking system for royal temples initiated in 1913. [4]
On 6 April 2019 CE, a ceremony was held at Wat Tum to gather and prepare sacred water for the Royal Coronation ceremony of King Rama X, presided by the Governor of Phra Sri Nakhon Ayutthaya, Mr Suchin Chaiyumsak. The earliest process was to collect waters from different important sources and then consecrate and combine them for use in the Royal Purification and Anointment Ceremonies during the Royal Coronation Ceremony. The governor scooped the sacred water from the open skull of the Buddha image Luang Pho Thong Suk Samrit during a special Brahman rite. The holy water was then put to rest at the temple, awaiting the consecration rites on 9 April 2019 at Wihan Phra Mongkhon Bophit. After the consecration rites, the sacred water of Wat Tum was transferred to the Ministry of Interior in Bangkok. On 18 April 2019, the waters from 76 provinces and Bangkok were combined and taken from the Ministry of Interior to go through another consecration rite at Wat Suthat Thepphawararam, to be taken to the ordination hall of the Temple of the Emerald Buddha (Wat Phra Si Rattana Satsadaram) the next day to be used in the coronation ceremonies of 4-6 May 2019. [5]
Wat Tum is in geographical coordinates: 14° 23' 18.95" N, 100° 32' 11.37" E.
Footnotes:
(1) Likely, the ceremony held here was not the "Drinking of the Water of Allegiance" but the pre-battle rite of "Cutting the wood which corresponds with the name of the enemy".
References:
[1] Quaritch Wales, H.G. (1931). Siamese State Ceremonies. Their history and function. London: Bernard Quaritch, Ltd. pp. 193-6.
[2] Loubère, Simon (de la) (1693). A new Historical Relation of the Kingdom of Siam (2 Tomes). London. Edited by John Villiers. Bangkok: White Lotus, 1986. p 81.
[3] Ayutthaya Historical Park - Fine Arts Department (2003).
[4] Website dhammathai.org/watthai/listroyalwat1.php - data retrieved 14 Dec 2009.
[5] Website Bangkok Post - data retrieved 1 April 2019.